Use your factory satellite antenna in GM Outlook, Enclave, Traverse...
Crutchfield Customer Review (What's this?)
Recently upgraded my 2009 Saturn Outlook stereo to a Pioneer NEX unit. Also decided to replace the XM unit with a new Sirius tuner. I was told I would need to use the supplied Sirius antenna. After some research, I found the factory XM unit for my car in the left rear compartment where the car jack is stored. I unplugged the antenna (there were 3 plugs, the greenish-mustard colored one was for the satellite antenna), and connected this cable and ran it up to the front and connected it to the new Sirius unit. Worked like a charm. My guess is this set-up will work for other GM related products like the Acadia, Traverse and Enclave.
Pros: Cable was sturdy and made a very positive connection.
Cons: Length. This cord is 50' long, only needed about half of that. I have a bunch of extra cable but was able to hide it under the floor in the trunk.