A harness adaptor lead allows you to install a car radio of your choice with out cutting any of the existing car wiring. All harness adaptor Leads are ISO ended and will plug directly into most models of car radio. Active system adaptor which connects to amplifier pre-outs of your new head unit. To activate rear speakers, the blue & White wire on the Red mini ISO plug also needs to be connected to the Blue wire coming off of the New Head Unit (marked Amp Remote). At the same time the blue wire on the PC5-90 adaptor also needs connecting to the Blue wire off the New Head Unit. Use this harness where you have NO Brown ISO connector. Click Part Code to see Vehicle applications. Also suitable for Alfa 156 with Connect Nav Bose system 2003 were the vehicle has no Speaker ISO Block.
Also see Technical Advice on installing these parts.