Antenna
My Onstar antenna fell off the back of the car driving down the highway. I figure it fell due to wind resistance so my car should be aerodynamically faster and weigh less. 
I call it my Onstar Antenna Delete Mod!!!

I call it my Onstar Antenna Delete Mod!!!
With XM and OnStar there are 2 configurations. One has 2 seperate pieces: the regular onstar antenna that attaches to the back glass window and the triangle XM antenna on the roof... it's about the size of a hockey puck.
The second configuration is where they are combined. This started in 2005 and has the XM triangle hockey puck and a little fin that sticks up about 2 inches or so, hence sharkfin.
The second configuration is where they are combined. This started in 2005 and has the XM triangle hockey puck and a little fin that sticks up about 2 inches or so, hence sharkfin.
i have the shark fin on top, the rear window is the radio and defrost, and for some reason i have a antenna on my front glass its a strip that runs about have way across the front window at the top, anyone know what that is? its not my onstar
Yeah, I've seen it before. Especially with my 2003 Cavalier. I had to be right next to it for the remote to work, but with my monte, I have stood clear across the parking lot (at least 200 feet) and it worked fine. Once it was facing me, that is.











