VW Radio Wiring Harnesses: Amazon I'm really happy how the harness turned out. there is 1 issue however. the accessory wire does NOT turn off the stereo. this is an issue on VW's end. simple enough, just rewire the accessory wire to either the fuse panel or the cigarette lighter. personally, I installed it on the fuse panel. Car Audio Wiring Harnesses for Volkswagen (VW) Vehicles Are you in the process of replacing your Volkswagen (VW) factory radio with an after-market car stereo? Avoid having to cut OE plugs and making a mess of it all! Our Volkswagen (VW) wiring harnesses can help you perform a clean installation without hassle.