It appears from your picture that someone installed that relay to activate the field portion of the alternator. There is a much simpler way to accomplish this. Go ahead and install the unit, if it works OK than leave it alone, if not, let us know so that we can tell you what to do. DMC Joe / DeLorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ---------- > From: Jim <starbuck@xxxx> > > I'm installing a new Alternator and I have a question. There is a > red/yellow wire jumpered off the Right Engine compartment that connects > to a relay and then goes to the Alternator. I drew up a picture to > better show what I'm talking about. Is this a normal setup? And if not > how should I fix it? > > http://www.gate.net/~starbuck/altrelay.JPG > > Thanks > Jim >