PLEASE NOTE: An additional patch lead is required for the steering controls depending on the make of radio being fitted. If unsure please see Full Description
Car Audio Steering wheel interface and ISO cables allowing use of original buttons with a new aftermarket head-unit.
This interface will retain the use of the steering wheel audio controls with an aftermarket head unit.
Suitable for Alfa Romeo 147, 156 Facelift and GT car models without CANBUS ignition.
PLEASE NOTE: If the car is fitted with a Bose System please use part number 20-266 with this interface
This interface is designed for vehicles that have permanent and ignition power feeds in the ISO connector in the dashboard.
Some cars only have a permanent power supply and use the CANbus signal to turn on the radio, for these cars a separate ignition power will need to be supplied or use our 29-655-CAN interface with a built in CAN ignition interface.
Fits the following Alfa Romeo vehicles:
147 (2000 - 2007) Pre-CANBUS vehicles only, including GTA
156 Facelift (2000 - 2007) Facelift cars and cars with original OEM navigation, including GTA
GT (2004 - 2008) Pre-CANBUS vehicles only
There are small amount of cars pre-2007 that have CANBUS ignition. Before ordering please remove the original radio as the vast majority of original radios have a useful wiring diagram on the chassis. Remove the original radio and check, if illumination and switched power are showing on pin 2 and 3 of the diagram then it does not have CAN ignition and 29-655 is the correct interface for you:
If Illumination and switched power are missing from pin 2 and 3 of the diagram then the car uses CANBUS ignition and will need interface 29-655-CAN:
NOTE: on some cars, the steering wheel control wires are reversed, check and test for correct operation of the steering wheel controls before installing the new radio in the dashboard. If they are not as expected or reversed then the white and grey steering wheel control wires will need to have their positions swapped at the interface box.
PLEASE NOTE: If the car is fitted with a BOSE sound system, this part must be used in conjunction with 20-266 Alfa Romeo BOSE interface.
PLEASE NOTE: An additional patch lead is required for the steering controls depending on the make of radio being fitted.
| Radio Being Fitted | Part Number | Short Description |
| Resistive Programming (Loose Wire) | 29-000 | Loose wire Patch lead for 29-Series Steering wheel control for Resistive Programming, Chinese, Xtrons, Pumpkin, Joying or unbranded stereos. |
| Alpine | 29-001 | Patch lead for 29-Series Steering wheel control for Alpine stereos. |
| Clarion | 29-003 | Patch lead for 29-Series Steering wheel control for Clarion stereos. |
| JVC (Single Wire) | 29-004SW | Single Wire Patch lead for 29-Series Steering wheel control for JVC stereos. |
| Kenwood | 29-005 | Patch lead for 29-Series Steering wheel control for Kenwood stereos. |
| Pioneer | 29-007 | Patch lead for 29-Series Steering wheel control for Pioneer stereos. |
| Sony | 29-008 | Patch lead for 29-Series Steering wheel control for Sony stereos. |
| Resistive Programming (3.5 Jack) | 29-016 | 3.5mm Jack Patch lead for 29-Series Steering wheel control for Resistive Programming, Chinese, Xtrons, Pumpkin, Joying or unbranded stereos. |
| Universal | 29-025 | Self-Pinning Patch lead for Alpine, Kenwood, JVC (single wire), Pioneer, Sony and Chinese/Resistive programming head units with either two wires or a 3.5mm jack. |
Brand: InCarTec
Car models: The years stated refer to the model's years of manufacture, please check the item description for information about any changes there may be within these productions years.
Alfa Romeo - 147 (Type 937) (2000 - 2010)
Alfa Romeo - 147 GTA (2002 - 2005)
Alfa Romeo - 156 (Type 932)' (1997 - 2005)
Alfa Romeo - 156 GTA* (2002 - 2005)
Alfa Romeo - GT (Type 937) (2004 - 2010)
