Just another dumb question - are the General Modules on the E32 and E34 (from around the same build year) similar and compatible, if not - what differences can be expected? A local second hand spares shop told me they're the same and I thought that before spending that kinda cash, to check first. He didn't even know from what year this E32 module was from, but said "early 90's". The part numbers were different, but idiot that I am, I didn't make a note of that one's number . Should I stay away?