Hey guys , first cadillac I have ever had here

but I can't leave anything alone, was just wondering as for interior parts, what years and parts are interchangable? I have a 1995 SLS Northstar, low milage, looks real sharp but is as stock from the factory as can be. Would like to put in heated seats, in dash CD changer/cassette deck maybe, a sunroof, stuff like that. I was thinking i could probably buy or pull a radio and seats from a newer caddy but don't know anything

about the models or years that you can swap around, any input?
