i have been doing some research and i still dont really understand it, i want to run my iPhone of the radio but obviously there is no USB or AUX input so i heard that you can run an AUX cable from the XM radio. How would i do this? Do i have to pull out the radio? and is this even possible?

 

Pull the radio.
Tap a 3.5mm audio jack to the inputs.
I tried it on my 06 but it didnt work.
Just made static.

It has worked for some people though so IDK.
And no, I am not electrically or audio retarded.

 

so your saying that this is a win/lose type of situation?

 

XM has 3 input wires in the back of the radio

right positive
left positive
and a single negative

good luck

 

alright i will try it, thanks for the help

 

not a win lose but a hit or miss situation

 

Here's an easy how to from tbssowners.com
Worked for my wifes Envoy but my Cobalt SS has the aux in so I havent tried it on our car.
Complete DIY for AUX input.....iPod, MP3, Android, Zune... - TBSSOWNERS.com Forums - The #1 TrailblazerSS Dedicated Owners Forum

 

Ive done it and its been the best mod ive done so far interior wise. Although it was so long ago i cant remember exactly how i did it.
probably should of made a how-to but i didnt think about it