Hi everyone, my first post here so I hope its in the right location. Got myself an A4 2001 B6 model today, have to say nice motor, however...lol... It has a antique hands free kit in it with a bt cellnet aerial on back windows. My problem is, I want to remove this and the aerial. I can remove the main bits but the aerial is where stuck. Basically, are those aerials drilled through the glass or just stuck on both sides of the window? I'm scared to try putting it off in case i break the window on my new motor. Any help will be greatly appreciated guys.

Jay