To be more specific, the DVD player works just fine with the relay, just the iPod video is what is giving me problems. If you just ground the brake wire, the unit senses the constant ground and locks the video out. There has to be a pulsed ground, which is what the relay does. On the relay, pin 30 is connected to the brake wire, 85 to system remote, 86 and 87 grounded. DVD works like a charm, but the iPod video pauses everytime I switch to it.