Grounding
I haven't actually tried grounding it to the head unit wires, since I hooked it up the right way first, and now i'm trying to get the DVD to play while the parking brake is engaged without having to pull the unit back out.
I guess my next step is to pull it out and try wiring it to...
Parking Brake Bypass?
Anyone had issues with the VSC/TRAC/Check Engine lights coming on when you ground the parking brake wire? Not that I've done this, but does anyone know if on Toyota's if you are supposed to leave it connected to the parking brake connection as well as set it to ground...