Assuming you're in the US - hard to tell - look for an owners manual for
the BMW-Alpine alarm system that was fitted to E36 models around that
time. Assuming again (bad thing to do) that it was the BMW alarm that
we're talking about - that will give you directions on training the
alarm to recognize the other key-fob.
If it is something other than the BMW-Alpine alarm - all bets are off.
No, sorry, I'm in the UK and I think It's a 'BMW 3G EWS' system that was
fitted at dealerships to new cars. I've found the remotes on sale on ebay
but unless they can be programmed from the car I'm no better off.
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