I have a D3 on order from Crutchfield and will be installing it in a 2007 Ford Explorer Sport Trac. My ST has a factory installed subwoofer. Will the subwoofer work with the D3 or do I need to get a separate amplifier for that? Second question about the rear camera. Anybody install one in 2007 ST or F-150 yet and if so, where did you install the camera? Thanks for any input.

metra 70-5521 and use a 3k ohm resistor between the blue/white wires

any clue on how to do it wit ha Scion tC 2007 RS 3.0 ??