I guess they could if you don't have an XM receiver. But don't trust me on that.

 

what would i use for a remote amp wire

 

Seems that you have two choices. The pink wire #8 on the radio harness will trigger the amp when the radio goes on, which some say will happen with door chimes, which you may not want.
Or you could just run from the fuse block using an add-a-fuse connector to one of several accessory circuits. That would mean no trigger on the door chimes, but also no delay power off feature, which I would want.
Im trying to find out myself, and havent tried either yet. Have a thread here:

https://www.chevyhhr.net/forums/audio-video-17/where-catch-pink-remote-wire-19890/

 

Let me know if you try it prod!
I am going to try it when I have a free weekend. Which I do not have during this season!

 

Where can you tap off for Ingnition Wire? Fuse Box or Ignition Harness?

 

Fuse box is the best choice I think. Use an add-a-circuit adapter in one of several spots that are controlled by the retained accessory power system. #21 is empty I think, sunroof, window would also work.