i tried installing one without the onstar add on, the airbag lights came on every time i turned on the head lights.

i couldn't figure out how the two were tied together, except for the dim option of the radio, and the microphone/speaker of the onstar. But since i couldnt be positive the airbags would go off in an accident, i removed the radio and bought a factory cd unit.

i didn't spend a lot of time looking into it though, i am sure it was wired in properly, and everything though.


but the solution is they make an onstar add on unit, i think it was like $150. That you wire in between the factory harness and the aftermarket radio.