I've got an older Pioneer DEH-P4100 from my last car and I was going to hook it up to my s2000 with the harness from Modifry and use his DCI as well.

Only thing is... I can find the powered antenna lead from Modifry's harness, but I can't find it on my old Pioneer harness.

If my deck doesn't have one, can I hook up some other switched 12v source?

Only leads I used from the last install were the constant 12v, switched 12v, ground, and 8 leads for the 4 speakers (+/- lead each speaker). The leads out of the Pioneer I didn't use were a fused "Door Switch", a fused "Alarm Output" and a spade connector "System Remote Control" that some manuals say can be hooked up to an auto-antenna relay control terminal.

I couldn't find anything quite right on the searches I did.

Any ideas?