1) New HU goes to the stock amp to the stock speakers. RCAs to the sub amp to the sub.
I had a shop do the stereo install since the car was less than a week old and the dealer had a problem with me doing it (even though I did it for years). But VWs have an alarm thing with the stereo, so sometimes things can get fubared if you don't know what you're doing.
2) Stock changer won't work. I took it out and traded it for the 2002 headlights
3) go to
www.vwmkiv.com and the how-to page for the fog lamp-brake mod. Took me more time to find the bulbs than to do the mod. The bulbs are the same as the exisiting brakes, so there's your part #.
I don't have the Euro switch, wiring all my extra lights to other switches (except the aux brakes, go on with the brakes) including the retro-ed fogs. I got the Hella DE fog kit for the lower air intakes, but haven't installed it yet. I may also get some driving lights: I have some KCs that I may put on a lightwing a-la Splat
Hokie, yes
About 26 highway with an avg of 80 mph, anywhere from 16-24 city. EPA is 21/29.
EDIT: oh, the DRL go to a small Radioshack switch, function normally when on. All I did was cut the DRL wire from the stock headlight switch, extend the 2 ends to the other switch.