OK. So I finally got around to hooking up the new head unit tonight, and now I have another question.

I didn't have the amp "on" wire connected because Pioneer puts a plug on the end of that wire, and I was hoping to just bypass the factory amp anyway, but without the amp signal wire connected, I got no sound. When my amp bypass cable comes, and I truly bypass the factory amp, will I need to have the amp "on" signal wire connected? I just like to keep things nice, and don't want to cut off that connector if I am just a couple of days away from not needing that wire connected up anyway. Then I have the plug for if I ever add an aftermarket amp down the road.

I know that it is minor, and I can always add a new plug later, but I just want to make sure that I do it right.

Otherwise, the new head unit made a HUGE improvement in sound, even with the factory speakers AND factory amp still in place. I can't wait until the new speakers come tomorrow, and I can bypass the factory amp (when the cable comes next week)...

For now, I took out the new head unit until I get the wiring 100%. I also think that one of my wires isn't soldered well or something as the left rear speaker sounds "weak" compared to the others. I'll play around with that.

Thanks in advance for any thoughts on the amp "on" signal wire.

Nick