I was bored at work today and took a 2009 GMC Sierra with bluetooth off the lot and took out the VCIM, found it has an external antenna that can be removed and replaced. installed the VCIM into an 08 with onstar and steering wheel controls and the bluetooth worked. I would like to find a VCIM to install in my 2007 truck, the VCIM is on an exchange basis through GM so you just cant buy one.

 

VCIM part# 25894444 if anyone knows where I can get one that would be great

 

what exactly is the VCIM?

 

VCIM is the Vehicle Communication Interface Module

 

the module that controls onstar it is located in the dash below the radio