Where do I hook up the wire for the remote lead coming from the amp? Sorry if this is in the wrong section.

To the remote turn on wire coming from the deck

Can you identify it by color or plug shape? I bought my deck used w/o a manual.

Its a blue/white wire that has a tag on it that says REMOTE TURN ON or SYSTEM REMOTE CONTROL or something like that

There are two harnesses on the back of the D3. It's the blue wire on the harness with all the RCA cables on it, not the blue wire on the harness with all the power & speaker wires on it.

Thanks. I should be finishing up my install tomorrow with this info.