I think this is already spoken for but this is a back-up just in case. (Propr'one drop me a message!)
Came with my headlight package I ordered from DDMtuning; but my car already had a one-touch roof...
"Sunroof Eclipse" one touch relay for 1996-1999 e36
Will sell for $20 + a couple of bucks for a bubble envelope & shipping.
Thanks for looking!