What is this?

[05Yukon23]

It is without a doubt the onstar mic. I asked the dealer about it when I was purchasing my Yukon.

 

[chauncey0337]

Secret ******, eh??

It's an old Beavis and Butthead reference, lol.

 

[07Burb]

I shoulda figured

 

[chip]

Government spy device?

Damn! You beat me to it.

 

[ashelm]

I took mine and unhooked it and put it in the glove box. WRONG !!!!! The little red light on the right side of the mirror came on to let me know there was a problem with the on star. So now on star cant hear what I am saying in my truck. Guess I need to get verizon now. Any way I plugged it back in and just put it inside the console. The light turned green and on star is happy again. Scott

 

[DCT]

I removed that mic, the buttons on the dash, the black box in front of the passenger sun visor, the ugly 80s limo antenna on the side glass (inside and outside), no problems with any systems or warning lights.

 

[Gzes]

Big Nathan installed it