I just purchased the SIRIUS unit to replace the factory XM unit to work with the Factory radio and controls, however, I cannot locate where the XM unit is to switch it out. I read somewhere that it is under the rear shelf, but how do you get to it? Does anyone know?
Hi Xit.....The factory XM module is in fact located under the rear shelf trim panel. You will have to remove the rear seat cushion, just pull up on the front of the cushion about 12 inches in from left and right corners. Remove the cushion from the car. Open the trunk and remove nuts located on the seat back just under rear shelf metal. Back inside the rear seat area, remove the seat belt buckle bolts located inboard of right and left lower corners of the seat back. Remove the seat back. You will now be able to see the (2) plastic fir tree pins that hold the shelf panel trim in place. Remove the pins.
Now comes the hard part, remove the right and left quarter sail interior trim panels ( Caution: roof rail air bag located behind right and left panels) the fasteners are located behind the "SIR" plastic buttons in the sail panel trim.
All in all, unless you have the proper tools and take the proper precautions, you might want to take your Cadillac to your local dealer.
Buy the way, is there something wrong with your factory XM module?
Let me know, regards.
Glad to here, hope all goes well and keep me informed.
Best regards,
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Hi GM Elec! Thank you so much! The dealer told us that it was located under the rear shelf, but didnt tell us how to get under there. We have an appointment with an installer shop that we were referred to by our Cadillac dealer. I will give them the directions that you gave me just in case. There is nothing wrong with the existing XM unit, we have SIRIUS subscription and now that they came out with the unit to switch and utilize the factory radio, antenna, and controls, we want to have it installed. I will write back and let you know once it has been done. Thanks again!
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