Original amplifier integration and bypass cables - Sort by: Code (ascending) - active, Code (descending), Price (lowest first), Price (highest first)

Headunit fitting

Cables, adapters and interfaces to retain or bypass original fit amplifiers

Volvo 850, 940 Radio ISO lead

Volvo 850, 940  Radio ISO lead
Cable to connect Volvo 760, 850, 940 car  to an after-market European car radio with ISO style connectors.

Stock code: 20-145
Price: £12.99

Ford (RDS 2007) Radio ISO lead

Ford  (RDS 2007) Radio ISO lead
For Ford cars fitted with the RDS2007 original radio. 
This cable includes the power plug fitted behind the radio  and SPEAKERS ( fitted at the original amplifier). 
Stock code: 20-146
Price: £12.99

Honda Civic / CR-V sub woofer adapter

Honda Civic / CR-V sub woofer adapter
Sub woofer retention adapter for Honda Civic and CR-V cars.

Stock code: 20-246
Price: £24.99

Land Rover HK Subwoofer output cable

Land Rover HK Subwoofer output cable
This cable allows you to connect an aftermarket head-unit (with Rear or Sub Woofer phono output) to the sub input of a Landrover Freelander, Discovery or Range Rover Vogue fitted with Becker Harmon Kardon 
Stock code: 20-247
Price: £3.99

Audi ISO lead for rear amplified cars

Audi ISO lead for rear amplified cars
Audi ISO and mini ISO adapter harness for rear amplified cars.
Stock code: 20-250
Price: £14.99

Audi CAN ignition ISO and antenna adapter harness

Audi CAN ignition ISO and antenna adapter harness
Audi ISO and mini ISO adapter harness for rear amplified and fully amplified cars.
This harness has a built in CAN ignition interface and phantom powered antenna adapter.

Stock code: 20-250A-IGN
Price: £46.99

Audi A2, A3, A4 & A6 Bose to ISO lead

Audi A2, A3, A4 & A6 Bose to  ISO lead
Cable to connect Audi cars with Bose amplifiers to to a aftermarket car radio using phono line output from the radio.
Stock code: 20-251
Price: £12.99

Audi quadlock harness for rear amplified cars

Audi quadlock harness for rear amplified cars
Audi quadlock to ISO adapter harness for rear and fully amplified cars.
Stock code: 20-254
Price: £22.99

Audi quadlock CAN ignition adapter harness

Audi quadlock CAN ignition adapter harness
Audi quadlock to ISO adapter harness for rear amplified and fully amplified cars.
This harness has a built in CAN ignition interface.
Stock code: 20-254-IGN
Price: £46.99

Toyota MR2 & Celica (94-05) amplifier ISO lead

Toyota MR2 & Celica (94-05)  amplifier ISO lead
Cable to connect Toyota cars  ( after  1994) with OEM amplifiers  to to a aftermarket car radio using phono line output from the radio.
Check that the connector matches the one on the back of your original radio.
Stock code: 20-257
Price: £12.99

Chrysler/Jeep/ radio to Phono plugs

Chrysler/Jeep/ radio to Phono plugs
For Chrysler Jeep cars with Infinity amplifier. Connects the cars audio connector to Phono plugs which are then attached to the pre-out phono plugs on after-market head-units.
Stock code: 20-258
Price: £12.99

Lexus / Toyota (05>) amplifier ISO lead

Lexus / Toyota (05>)  amplifier ISO lead
Cable to connect Toyota and Lexus cars  ( after  2005) with OEM amplifiers  to to a aftermarket car radio using phono line output from the radio.

Check that the connector matches the one on the back of your original radio.
Stock code: 20-259
Price: £19.99

Nissan 350Z,Murano,BOSE or Infinity Radio ISO lead

Nissan 350Z,Murano,BOSE or Infinity Radio ISO lead
For Nissan cars with OEM amplifiers to male Phono connectors for connecting a European car radio.
This cable includes the power and speaker supply. If the car has steering wheel controls then use item 29-674 instead. 
Stock code: 20-260
Price: £19.99

Hyundai cars (05-09) with OEM amplifier

Hyundai cars (05-09) with OEM amplifier
Car radio iso lead for Hyundai cars  made between 2005 and 2009 with Amplifier fitted under drivers seat.

This connector has two sizes of pins

Connects the new radio to the cars original connector

Stock code: 20-261
Price: £16.99

VOLVO Din plug to Phono

VOLVO Din plug to Phono
For Volvo cars with premium sound and Dolby Pro-Logic systems.
4 channel  pre-out signal to the cars amplifier.

Stock code: 20-262
Price: £19.99

BMW Round Pin Radio ISO lead Harmon Kardon

BMW Round Pin  Radio ISO lead Harmon Kardon

For BMW cars built before 2002 with 17 pin Round connector and HARMON KARDON amplifier upgrade.

Retains the use of the amplified audio system, including subwoofer.

Stock code: 20-263
Price: £12.99

Ford amplifier turn on & Sub interface

Ford amplifier turn on & Sub interface
For Ford cars with Shaker 500 & 10000 
This cable includes amplifier turn on remote wire and phone output for subwoofer.
Suitable for cars 2004-2006  before can bus was introduced in 2007.



Stock code: 20-264
Price: £18.99

Audi A3 ,A4, TT Quadlock with PHONO out

Audi A3 ,A4, TT  Quadlock with PHONO out
Cable for connecting Audi A3, A4 & TT cars with BOSE or Symphony radio's to a European car radio to cars with ISO style connectors.
This cable uses the PHONO low level output from the new radio to connect to the cars amplifier.
Only use with head-units with 4v-6v phono preouts.

Stock code: 20-265
Price: £14.99

Audi A3 ,A4,TT Quadlock with PHONO & CAN & Ant

Audi A3 ,A4,TT  Quadlock with PHONO & CAN & Ant
Plug and Play solution for  Audi A3, A4 & TT cars with BOSE or Symphony  radio's , but without steering wheel controls, to cars with ISO style connectors.
This cable uses the PHONO low level output from the new radio to connect to the cars amplifier.

Stock code: 20-265A-IGN
Price: £49.99

Alfa Romeo 147, 156, 159 BOSE Car Radio ISO lead

Alfa Romeo 147, 156, 159 BOSE Car Radio ISO lead
Bose interface for Alfa Romeo cars.

Stock code: 20-266
Price: £34.99

Alfa Romeo 147 active speaker adapter

Alfa Romeo 147 active speaker adapter
Male to female ISO cable  for connecting an aftermarket car radio to an Alfa Romeo 147 that has the OEM sub-woofer
Stock code: 20-267
Price: £14.99

Nissan 2007> ISO harness with RCA for OE amp

Nissan 2007> ISO harness with RCA for OE amp
ISO adapter harness with RCA connectors for fitting a new aftermarket head unit into cars fitted with original Bose amplifiers.

Stock code: 20-268
Price: £14.99

Honda Civic, CR-V ISO harness with RCA for OE amp

Honda Civic, CR-V ISO harness with RCA for OE amp
ISO adapter harness with RCA connectors for fitting a new aftermarket head unit into cars fitted with original amplifiers.

Also has adapter cable to retain the original fit subwoofer.

Stock code: 20-269
Price: £16.99

Audi A3, A4, A6, TT BOSE Radio adapter

Audi A3, A4, A6, TT BOSE Radio adapter
Interface cable with 4 channel adjustable line output for connecting Audi Bose cars with ISO connectors to after-market car radios.

Stock code: 20-270
Price: £39.99

Audi fully amplified/BOSE to ISO with CAN breakout

Audi fully amplified/BOSE to ISO with CAN breakout
Audi cars with Bose or fully amplified sound systems. The lead has CAN breakout wires.

Stock code: 20-270-CAN
Price: £44.99

Audi ISO BOSE adapter with CAN ignition

Audi ISO BOSE adapter with CAN ignition
Interface cable with 4 channel adjustable line output for connecting Audi Bose cars with ISO connectors to aftermarket car radios.
This lead also has a built in CANbus interface to generate a CAN ignition supply to the new head unit.
Stock code: 20-270-IGN
Price: £69.99

Chrysler/Jeep 4 channel active ISO lead interface

Chrysler/Jeep 4 channel active ISO lead interface
Chrysler, Jeep  Active amplifier converter to ISO connectors for  a European after-market car radio.
4 channel adjustable 
Stock code: 20-271
Price: £39.99

VOLVO SC901 Amplifier interface

 VOLVO SC901  Amplifier interface
Volvo 6 pin Din plug Audio interface  with 4 channel adjustable line out put for connecting  cars with OEM ampliers  to the ISO connectors  of an after-market car radio.

For Volvo cars with 6 pin Din  pre-amp socket and Black power connectorat the back of the radio.

Suits Volvo SC900, SC901, SC805  head-units

Stock code: 20-272
Price: £44.99

ISO to ISO amplifier integration interface

ISO to ISO amplifier integration interface
4 channel adjustable ISO to ISO amplifier interface.

Use to install a new radio in a car that has an original fit amplifier that takes a pre amplified audio feed.

This interface converts the high level audio output of a new head unit to a low level pre amplified signal which will work with an amplifier.
4 adjustable channels for optimum audio quality, it has a built in ground loop isolator and filters to get the best sound from the amplifier.

Stock code: 20-273
Price: £34.99

Range Rover P38 (94-99) Amplifier interface

 Range Rover P38 (94-99)  Amplifier interface
Range Rover P38 (94-99) Audio interface  with 4 channel adjustable line out put for connecting  cars with OEM ampliers  to the ISO connectors  of an after-market car radio.

For Range Rover cars fitted with original Clarion head-units with pink 10 pin ISO  pre-amp socket at the back of the radio.



Stock code: 20-274
Price: £44.99

Audi Cabriolet amplified audio adapter harness

Audi Cabriolet amplified audio adapter harness
Interface cable with 4 channel adjustable line output for connecting Audi Cabriolet cars with ISO connectors to an aftermarket car radio.

Stock code: 20-275
Price: £44.99

Audi BOSE Quadlock to ISO adapter

Audi BOSE  Quadlock to ISO   adapter
Audi A3, A4, TT cars with Bose or fully amplified sound systems. The lead has CAN breakout wires.

Stock code: 20-276
Price: £45.99

JAGUAR XJ8 XK8 Premium Sound Amplifier interface

JAGUAR XJ8 XK8 Premium Sound Amplifier interface
Jaguar 6 pin Din plug Audio interface with 4 channel adjustable line out put for connecting to cars with OEM amplifiers to the ISO connectors of an after-market car radio.

Use with XJ8 cars with Alpine Premium Sound systems
Also for XK8 cars but from 1996-1999, these cars will have a white 20 pin connector and a 6 pin round din connector at the back of the radio.
Stock code: 20-277
Price: £44.99

VOLVO Amplifier interface

 VOLVO Amplifier interface
Volvo 6 pin Din plug Audio interface  with 4 channel adjustable line out put for connecting  cars with OEM ampliers  to the ISO connectors  of an after-market car radio.

For Volvo cars with 6 pin Din  pre-amp socket at the back of the radio.

Suits Volvo HU 803, HU 850 head-unit

Stock code: 20-278
Price: £44.99

VOLVO Amplifier interface

 VOLVO Amplifier interface
Volvo HU655 and HU605 head-unit 6 pin Din plug Audio interface  with 4 channel adjustable line out put for connecting  cars with OEM ampliers  to the ISO connectors  of an after-market car radio.

For Volvo cars with 6 pin Din  pre-amp socket as well as the grey and green connectors at the back of the radio.

Suits Volvo HU655, HU605 and HU603. May also work with other head-units

Stock code: 20-279
Price: £54.99

Saab 95 with DENSO NAV amplifier interface

Saab 95 with DENSO NAV amplifier interface
For Saab 95 cars WITH ORIGINAL DENSO NAVIGATION.
This is an audio interface with 4 channel adjustable line output for connecting to the cars OEM amplifier to the ISO connectors of an after market car radio.

Suitable for all models with original fit amplifiers

Suits Saab Denso 8057 head-unit

Stock code: 20-280
Price: £54.99

Porsche mini ISO amplifier adapter interface

Porsche mini ISO amplifier adapter interface
Interface cable with 4 channel adjustable line output for connecting amplified Porsche cars with ISO connectors to after-market car radios.

Stock code: 20-281
Price: £39.99

Lexus IS200 amplifier bypass cable

Lexus IS200 amplifier bypass cable
Amplifier bypass cable for Lexus IS 200,GS430,, LS430, RX300.
 Allows you to connect a new aftermarket radio directly to the cars speakers after bypassing the original amplifier which is behind the passenger glovebox.
Stock code: 20-301
Price: £19.99

Chrysler Jeep amplifier bypass cable

Chrysler Jeep  amplifier bypass cable
Amplifier bypass cable. Allows you to connect a new aftermarket radio directly to the cars speakers after bypassing the original amplifier.
Commander (05-09), Compass (07-09), Grand Cherokee (05-08) Patriot (06-09)
Grand Voyager (05-08) Voyager (04-07) 300C (04-07)
Stock code: 20-302
Price: £39.99

Toyota Landcruiser LC5 amplifier bypass cable

Toyota Landcruiser LC5 amplifier bypass cable
Amplifier bypass cable for Toyota Landcruiser 120 with LC5 trim.
Allows you to connect a new aftermarket radio directly to the car's speakers after bypassing the original amplifier which is under the front seat.

Stock code: 20-303
Price: £19.99

Chrysler/Jeep/Dodge (09>) amplifier bypass

Chrysler/Jeep/Dodge (09>) amplifier bypass
Amplifier bypass cable for cars made after 2009. Allows you to connect a new after-market car radio directly to the cars speakers.
Includes crossovers.
Stock code: 20-306
Price: £69.99

Volvo XC90 (03-14) amplifier bypass cable

Volvo XC90 (03-14) amplifier bypass cable
Amplifier bypass cable for Volvo XC90 cars.
Allows you to connect a new aftermarket radio directly to the cars speakers after bypassing the original amplifier.

Stock code: 20-307
Price: £29.99

Landrover Harman/Kardon amplifier bypass cable

Landrover Harman/Kardon amplifier bypass cable
Amplifier bypass cable for Range Rover Sport and Discovery III cars fitted with standard Harman/Kardon amplifier underneath the driver's seat. Allows you to connect a new aftermarket radio directly to the car's speakers after bypassing the original amplifier.
A new extra amplifier will be needed to keep the original sub-woofer. Sound to tweeters may be lost.
NOT FOR LOGIC 7 SYSTEMS

Stock code: 20-308
Price: £29.99

Kia Sorento 2010 amplifier bypass cable

Kia Sorento 2010 amplifier bypass cable
Amplifier bypass cable for Kia Sorento models with digital amplifier under the passenger seat.
Allows you to connect a new aftermarket radio directly to the cars speakers after bypassing the original amplifier.

Stock code: 20-309
Price: £29.99

Jaguar XK8 Convertible 00-05 amp bypass cable

Jaguar XK8 Convertible 00-05 amp bypass cable
Amplifier bypass cable for 2000 - 2005 Jaguar XK8 cars with premium sound systems.
This cable allows you to install a new radio by bypassing the cars original amplifier.

For cars with a 12 pin white connector and Alpine AI net connector at the back of the radio.

Stock code: 20-310
Price: £69.99

Jaguar XK8 (XJ) Coupe 00-05 amp bypass cable

Jaguar XK8 (XJ) Coupe 00-05 amp bypass cable
Amplifier bypass cable for 2000 - 2005 Jaguar XK8 cars with premium sound systems.
Also fits 2000 - 2004 model Jaguar XJ cars with premium amplified audio systems.
This cable allows you to install a new radio by bypassing the cars original amplifier.

For cars with a 12 pin white connector and Alpine AI net connector at the back of the radio.

Stock code: 20-311
Price: £69.99

Freelander 2 Alpine premium amplifier bypass cable

Freelander 2 Alpine premium amplifier bypass cable
Amplifier bypass cable for Freelander 2 cars with original Alpine premium sound system amplifiers in the rear right quarter. Allows you to connect a new aftermarket radio directly to the car's speakers after bypassing the original amplifier.
A new extra amplifier will be needed to keep the original sub-woofer.
Stock code: 20-313
Price: £34.99

Range Rover Sport, Discovery 3 LOGIC7 amp bypass

Range Rover Sport, Discovery 3 LOGIC7 amp bypass
Amplifier bypass cable for Range Rover sport and Discovery 3 cars with original Harman/Kardon LOGIC 7 premium sound system amplifiers under the driver's seat. Allows you to connect a new aftermarket radio directly to the car's speakers after bypassing the original amplifier.
A new extra amplifier will be needed to keep the original sub-woofers.
Stock code: 20-314
Price: £69.99

2 channel LOC with auto amp turn on

2 channel LOC with auto amp turn on
Active Plus adjustable 2 channel line out-put converter with 12volt amp turn on circuit .

Use for adding an amplifier to  standard speaker wires. (100W) max
Stock code: 23-003
Price: £28.50

Speaker Low voltage trigger module

Speaker Low voltage trigger module
Speaker level amp turn on trigger. Used to turn on remote amplifiers.
Has 1 second delay to prevent turn on pops. Supplies 2amp of current so can turn on multiple amps or power antenna.
Stock code: 23-004
Price: £14.99

2 channel line out converter 80W w/ remote trigger

2 channel line out converter 80W w/ remote trigger
Adjustable 2 channel line output converter with built in amplifier remote trigger.
Converts 2 channels of speaker level audio to 2 channels of line level audio.

Stock code: 23-005
Price: £19.99

2 channel line out converter 150W w/remote trigger

2 channel line out converter 150W w/remote trigger
Adjustable 2 channel line output converter with built in amplifier remote trigger.
Converts 2 channels of speaker level audio to 2 channels of line level audio.

Stock code: 23-006
Price: £24.99

4 channel line out converter 150W w/remote trigger

4 channel line out converter 150W w/remote trigger
Adjustable 4 channel line output converter with built in amplifier remote trigger.
Converts 4 channels of speaker level audio to 4 channels of line level audio.

Stock code: 23-008
Price: £29.99

2 channel line out converter 150W high level

2 channel line out converter 150W high level
Adjustable 2 channel line output converter.
Converts 2 channels of speaker level audio to 2 channels of line level audio at a 3:1 step down ratio.

Stock code: 23-009-2
Price: £27.99

4 channel line out converter 150W high level

4 channel line out converter 150W high level
Adjustable 4 channel line output converter.
Converts 4 channels of speaker level audio to 4 channels of line level audio at a 3:1 step down ratio.

Stock code: 23-009-4
Price: £37.99

GM 24 Pin (00>) amplifier interface

GM 24 Pin (00>) amplifier interface
Interface for GM and Chevrolet cars with 24 pin GM class II data bus . This interface allows you to use the original amplifier with an aftermarket car radio.

This unit is terminated with Phono cables for direct connection to the low level phono out-put on aftermarket car radio's.
Not for vehicles with Onstar or "Premium Bose"

Stock code: 23-201
Price: £99.90

GM 24Pin(00>) Premium Amplifier & SWC interface

GM 24Pin(00>) Premium Amplifier & SWC interface
Special interface for  GM and Chevrolet vehicles made after  2003 with GM class II data bus system and 24pin grey style connectors. Suits all vehicles with standard amplifiers, Bose or Premium Bose. Includes pre-programmed steering wheel controls . No patch lead is needed.
PAC part number RP5-GM11
Stock code: 23-207
Price: £199.00

Chrysler Voyager (05-08), Dodge Ram amp turn on

Chrysler Voyager (05-08), Dodge Ram amp turn on
Amplifier turn on interface for Chrysler Voyager 2005-2008 vehicles and Dodge RAM 2002-2005 vehicles.

Stock code: 23-211
Price: £149.99

Cadillac CTS amplifier interface Bose

Cadillac CTS amplifier interface Bose
For Cadillac CTS & SRX cars with Bose amplifier.This interface allows use of the original amplifier for aftermarket car stereo's.
Stock code: 23-216
Price: £129.99

GM vehicles (07>) with P.Bose & Onstar

GM vehicles (07>) with P.Bose & Onstar
All in one radio replacement and SWC interface, this interface  comes pre-loaded with OnStar retention, amplifier retention, 
SWC software, navigation based output signals and other features that save time and money during installation.
GM & Chevrolet interface for cars made after (07-13) with 29 bit GM   LAN bus data and BOSE amplifiers. 
No Patch lead needed as they are included.
See compatibility notes:
Stock code: 23-217
Price: £189.00

Toyota/Lexus JBL Amplifier turn on

Toyota/Lexus JBL Amplifier turn on
Retains OEM amplifier when replacing the radio
For cars with JBL premium sound systems
See compatibility notes
Stock code: 23-224
Price: £99.00

GM trucks (12+) with NAV, P.Bose & Onstar

GM trucks  (12+) with NAV, P.Bose & Onstar
GM Trucks with Original Navigation made after 2012. All in one radio replacement and SWC interface, this interface  comes pre-loaded with OnStar retention, amplifier retention, 
SWC software, navigation based output signals and other features that save time and money during installation.

No Patch lead needed as they are included.
See compatibility notes:
Stock code: 23-227
Price: £189.00

Mazda radio replacement interface

Mazda radio replacement interface
Mazda all in one radio replacement and SWC interface.
Includes steering wheel commands, ignition supply, speed pulse, illumination, reverse trigger, parking signal. Allows for  Bose amplifier turn on, and enables you  to program the clock after the original radio has been removed.

No Patch lead needed as they are included.
See compatibility notes:
Stock code: 23-228
Price: £139.99

Honda 12> radio replacement amplifier interface

Honda 12> radio replacement amplifier interface
Honda Civic & CR-V all in one radio replacement and SWC interface for amplified cars.
Includes steering wheel commands, ignition supply, speed pulse, illumination, reverse trigger, parking signal.

Maintains the use of the original amplifier.

Keeps the ability to set the factory clock.

Stock code: 23-229
Price: £129.99

Chrysler/ Dodge/Jeep CANbus SWC Interface

Chrysler/ Dodge/Jeep  CANbus SWC Interface
Jeep, Chrysler & Dodge  CAN bus Car Audio Steering wheel interface.
Includes both types of connector and will suit most car models with CAN radio's.

Includes Retained accessory power ,speed pulse, reverse, handbrake and illumination signals. Also includes Amplifier turn on 
Stock code: 23-233
Price: £129.90

American Ford RP4-FD11 radio replacement interface

American Ford RP4-FD11 radio replacement interface
Radio replacement interface for American Ford cars.
Interface to retain the original amplifier, steering wheel controls, provides CANbus outputs.

Stock code: 23-236
Price: £139.99

Porsche fibre optic headunit replacement interface

Porsche fibre optic headunit replacement interface
Fibre optic interface to allow the fitting of a new head unit into a Porsche and retain the use of the fibre optic amplifier.
For vehicles with PCM2 and PCM2.1 original audio systems.
Stock code: 23-237
Price: £279.99

Mercedes fibre optic radio replacement interface

Mercedes fibre optic radio replacement interface
Fibre optic interface to allow the fitting of a new head unit into a Mercedes and retain the use of the fibre optic amplifier.
For vehicles with MOST fibre optic amplifiers.
Stock code: 23-238
Price: £279.99

Porsche fibre optic headunit replacement interface

Porsche fibre optic headunit replacement interface
Fibre optic interface to allow the fitting of a new head unit into a Porsche and retain the use of the fibre optic amplifier.
For vehicles with PCM2 and PCM2.1 original audio systems.
Stock code: 23-239
Price: £279.99

Mini <06 SWC interface with Harman/Kardon enabler

Mini <06 SWC interface with Harman/Kardon enabler
Steering wheel control interface with built in Harman/Kardon enabler for pre 2006 model Mini cars.
Retains the use of both the steering wheel control, including telephone buttons, and the Harman/Kardon original amplifier.
This lead is plug and play.
Stock code: 29-628HKM
Price: £99.99