Newbie Question Time.. 10 points to whoever helps me :-)

I would say with a 2005 it is a B7 chassis,easy way to tell is by the grill, if you have two smaller grills ( ONE BONNET AND ONE IN THE FRONT VALANCE ) then ist is a B6 or if you have the larger one piece grill with the number plate in the center then it is a B7, i may be wrong but i think Audi continued the B6 chassis for longer in the cab variant than the saloon and avant, post up a pic and we can tell for sure,can't help you with the roof i'm affraid as mine is attached to the rest of the car

if you fit the roof closer you use the lock to close unlock to open !
ot its a 1 touch from the inside switch