Review on PAC RP3-GM12 Radio Upgrade Adapter for GM Vehicles without On-Star by Sean Moran

2006 Chevy Equinox LT: This PAC RP3 GM-12 fits my Equinox which does not have ONSTAR No steering and I use a stock amp. Fits perfectly with the wiring harness. I recommend soldering and using heat shrink tubing for all your connections. The volume of the beeper on the interface unit was at maximum, quite loud. Little little blue box. This is the slot on the box for the control harness, sold separately. I would buy it again, the price of this PAC is high compared to the METRA GMOS-08 brand which I have also used.