[Nicole]

My previous 928 - a 91 GT - had a "professionally installed" aftermarket stereo system with upgraded speakers in the doors.

Well, as it turns out, the "professional" installers ("professional" meaning: They got pay according to their qualification - both of which were low) did some rough cutting into the inner metal of the door, in order to fit these huge speakers. Then they screwed those heavy suckers directly onto the door panels, but not through to the metal.

Oh, I forget - there was no metal left where it would have helped...

The result: Not only was the car butchered - if anyone slammed a door, the four screws would come lose and the speaker flop around.

I don't remember which of those "professional" chain store installers it was, but you can be sure I will avoid such establishments as long as I live!

Fortunately, I found a really good car stereo shop nearby (Soundwave in San Carlos, CA) where the owners work on the cars themselves - and they have done numerous 928s already. They know the systems that are in there, and what can be done to upgrade or replace them while preserving the factory look. Great guys!