The original daewootech forum

hey there, I'm dtx's gf, I have a 99 cougar that had a similar problem. Take the whole door apart and make sure that all of the door cables are attached properly and are secured. Is it not making any noise at all when you go to open the doors? are they power locked? this all will effect why your doo...

in my 06 Optra it was 6.5" in the front and back. Stock back speakers were a little smaller, but 6.5 fit when you removed the plastic spacer. I'm assuming the Aveo is the same, check http://www2.wiremagic.com/fitguide/bestbuy/
they can tell you the size for most cars.