yes the antenna operates both the on-star and xm-radio. i've heard that you can disable your truck if you **** with it so i'd leave it if i were you.
when people steal our trucks, they'll knock off the antenna so the truck can't be traced

 

That certainly sucks but thank you both for asking and answering that question! I guess ill just have to modify the garage instead of the truck lol.

 

break out the sawzall

 

You or I could probably make up a metal or composite plug to bolt in the hole, would only be sticking up 1/8" or so.....seal it up with an o-ring....

 

just lower the truck an 1" haha.. i see it says your up 6"

 

HAha well that means id have to take my entire kit off which I wont. Im just going to deal with it. It's not that big of an issue.