New SVX owner.

hello all. Just became a new SVX owner. Its a black 1992 for those interested, and the engine just turned to 80K miles a couple of weeks ago. My uncle had 2 (the other is also a 92, but pearl white) and i have been coveting the car ever since he got them like 6-7 years ago, and i finally was able to talk him into selling one. Anyway, just some questions i had:

1) is there any kind of special care/maintenence you guys would suggest? Anything out of the ordinary from most cars that i should keep in mind?

2) unfortunatly the stereo is busted (the cd player actually works, it just has a disc stuck in there). Putting in aftermarket players seems to be a pain from what i've read, so i was thinking of doing that WRX 6 disc switch. Will any model of WRX decks work? And i won't need the special wire harness, its just a clean switch, correct?