I'm most interested in #3 above. Ideally, I'd like to operate the PIAA lights with the factory switch. I noticed a few have mentioned doing this, but haven't provided details. It's been a while since I was under the dash to do the fog light fix, but if I remember correctly wouldnt the following work?
The PIAA harness has 2 wires going to the relay from the PIAA switch (there is a third wire for the switch power, but that's irrelevent if using the stock switch I believe)...red (positive) and black (ground). If I splice the red wire before the relay into the Orange/Yellow leaving the factory switch, and the black (ground) into the Black/Red leaving the factory switch, that should work, shouldn't it? I have a Chilton's manual with a somewhat crappy wiring diagram, so I'm not sure if this is 100% (I'm also at the office, not looking under the dash of the 'Tour, so bear with me).
