bobkat
New Member
I just picked up a real nice '04 Avalanche that has a little antenna on the roof on the driver's side. This truck has the UC6 factory head unit and UQ7 Bose speaker system. It does not have factory XM and I want to add some portable unit. My question is:
Is this little antenna for Onstar only or XM as well?
If for XM would there be a vacant connector somewhere behind the glove box? I dropped the glove box door and had a quick look around - there is no XM module (of course) nor can I see an antenna connector anywhere hanging down ready to be hooked up.
Where is the actual Onstar module? There is some silver box above the glove box area with a wire harness and some strange looking foam covered tube going to it. Airbag module?
I'm lost...
Thanks for all replies.
Is this little antenna for Onstar only or XM as well?
If for XM would there be a vacant connector somewhere behind the glove box? I dropped the glove box door and had a quick look around - there is no XM module (of course) nor can I see an antenna connector anywhere hanging down ready to be hooked up.
Where is the actual Onstar module? There is some silver box above the glove box area with a wire harness and some strange looking foam covered tube going to it. Airbag module?
I'm lost...
Thanks for all replies.