2011 GMC Sierra

[cottagecottage]

OK I found the Onstar Module...mainly through reading alot of stuff ....thank you everyone.
First I removed the fuse cover and started to remove the dash around under the steering wheel.
Then I took out the ashtray. Then one more piece of dash to the right of the ashtray.
There was a grey box....about 4 inches by 3 inches by 1 inch thick....This is the Onstar module.
I unplugged the on star and plugged in the Bluestar...There was an extra wire looking like an antenna wire...I unplugged that from the onstar unit and just left it hanging.

The bluestar worked right away....I paired my phone to it and tried it and everything seems to work fine. The radio shuts off and your phone is hands free......

Thanks again everyone for your help......Total time from start to finish....1 to 1 1/2 hours.....

Rob