So since I got XM, and I can't stand the damn FM modulation audio quality, I decided to throw my ole Pioneer premier head unit into the VX.

So I've got my harness (that I made, I'm almost positive its wired correctly)
and plug it up to the harness in the vx and ... no dice.

no power at all.

So I'm like wtf, is the head unit fried? So I plug in just the main harness back into the stock HU and no power. Confounded at this point, I plug the CD changer harness back in and YAHTZEE! we have power.

Now, the vehicle end of the harness has been spliced back to factory wiring by those damn "solderless" splicers so I can't be sure that its back to 100% the way it was. Even better, theres not much room left on the wires in case I have to re-do the whole damn thing. So before I go diving in with a multi meter, I wants to know if I need to run a line in from the CD Changer harness to get the damn head unit to turn on.

Thanks - Just wanting to find out if theres something out of the ordinary going on before I dive head first into troubleshooting this whole thing.