The roof is a challenge for many, new seals and careful adjustment by someone with experience should sort it, assume you may need to do it a few times throughout it's life, especially if you take it off often. If it is any compensation I bought the Coupe thinking it would be water tight given it was a hard top! On the S2 I have replaced the rubbers on the windscreen ends a couple of times as well as the clamps on the hood, this keeps it tight for a good while.
Taffy I would make a guess that your radio has been installed outside the box as an aftermarket? So it is not going through the box and hence does not flip out. Do check there is a good fuse and cabling given that situation.
They have niggles, it would take something really rotten to overcome how much we love them.
