Haha yeah ik it does sound a bit odd doesn't it, the fact that the stereo would have anything to do with the horn switches... It just seems like a big coincidence that right after I fit the new HU the horn stops working on the wheel, with so many folks saying that it's somehow related. I'm a...

resurrecting this thread to ask... does anyone know how you would go about getting your aftermarket stereo to work with the horn again? Fitted a nice apple car play unit to my TD4 the other week and since then the horn hasn't worked on the button (still toots if you leave a door open when trying...