Mickey_Spiers

While not trying to revive anything, wanted to add my two cents. I've got an '08 3/4 ton Suburban with factory Nav and steering wheel controls. I bought 20783877 from an '09 Acadia for $40 on eBay, and just hooked it up. Works like a champ. I have to go through the OnStar menu to get to the bluetooth menu as mentioned above but it paired to my phone on the first try. Interestingly my OnStar still works; green light was on right after I plugged in the new module, so after pairing my cell phone and testing that out, I used the OnStar button on the mirror and it connected me to an operator. Not much I could do without a subscription, but apparently the thing is all set...?