What do these plugs go to?

[Warriorpluto]

2007 Yukon Denali. I just got. It was salvage title. It was under the glove box. One looks to be an antenna

 

[kbuskill]

Looks like the factory GPS antenna and probably one of the stereo harnesses.

 

[RED TAHOE LS]

Welcome to the forum, as OP stated must be radio/antenna related.
David g.

 

[W8TVI]

Welcome to the forum, as OP stated must be radio/antenna related.
David g.

Isn't that where they mount the onstar box?

 

[Warriorpluto]

I hope not. This truck is a theft recovery. That means more crap I have to buy. I don't see the red light lit up saying on Star isn't active but I'll try to see if it will connect and report back

 

[Tonyrodz]

Xm radio related?

 

[Spanky]

the yellow plug is the xm plug, the other...I dunno.

 

[mwilson62000]

Yellow is definitely xm radio antenna connection. Maybe other is harness to the xm tuner. Perhaps someone removed the tuner.

 

[HiHoeSilver]

There is a 16 pin connector that goes to the xm box, but those colors look funky...post a pic of the wire side of that connector.