rbarrios said:dont even have to run a line..
Since it appears your already handy with wiring---
you simply have to tap into the rear view mirror.
If it has the ONstar buttons- you have 12V power controlled by the key.
You can either find the small pins to connect to the plug and make your own wiring to power the radar detector---- OR you can buy one here.. checkout the link- to get an idea of where to plug into the back..
Saw your product to late...already ran the wire across headliner, down the pillar post and over to fuse panel on passenger side. Really wanted to have it fused seperately!