Antenna

I have a 2002 Grand Prix Gt and i just wanted to know where is my Factory Antenna on my Car, I know a friend of mines has a 1997 Grand prix with has the same body style is mines and his antenna runs like a regular antenna out the back of the car straight up in the air that you can see it from the car< i asked other people about it and they say it around the outside of my windshed and if this is ture How would i get to it< B/cuz i have a Keyless entry with romote starter and i wanted to connect that system to my factory antenna b/cuz its range isnt so far compared to my factory Keyless entry< so can anybody help me please> Or can you even get to the Antenna and will it work

well i may stand corrected, but i belive the antenna runs across the back window grid along with the rear defoggers

Are you talking about across the def lines on the back window, and is there a way too hook up the keyless entry kit into it