I have a CTS from my old truck im gonna add to the new one but was wondering how you guys have installed (routed) the cable from the under dash connection to the top of the dash. any pictures?

Thanks...

 

I don't have any pictures but I pulled the piece of plastic on the side of the dash and ran the cable up above the parking brake, thru that area and then along the back top of the dash to the center part of the windshield.
I have my GPS on the left and the CTS on the right.

 

the piece that the door closes up against with the round vent in it?

i tried (not very hard) to pull the door seal off a bit but it was either real tight or glued....seemed like it was glued and i didnt want to rip it.

 

Correct, that single vent on the side to the left of the headlight ****.
That cover pulls off. I start at the bottom and work up.
Here's a 2010 I've driven but it's the same dash for the most part.

EDIT: I don't remove it completely. I use the weather stripping as a hinge and fold it back a bit so I can get my hand in there.

 

Took pictures with my blackberry.

 

cool...thanks for the pics.

just like you said...pull on it a bit and it pops out. i routed it just like in your pic but im gonna try to keep it on the left side.

thanks again