Jim, If the blue/yellow and white wire are in the factory installed wire harness it is part of the coil primary wiring circuit. The solid blue is an added wire. The brown wire with the connector in the electrical compartment is the feed wire for the door lock module. If you have the factory installed lock module it would be best to leave this wire disconnected until you install a Lockzilla <http://store.yahoo.com/dsvstore/lockzilla.html>. "We're here to help you" DMC Help / De Lorean Services / <dmchelp@xxxx> Web Site: <www.deloreanservices.com> ----- Original Message ----- From: Jim Strickland To: dmcnews@xxxxxxxxxxx Sent: Tuesday, September 12, 2000 3:31 PM Subject: [DML] Mystery Wires I have some mystery wires in my engine compartment, thought someone might be able to tell me what they are.... By the water overflow tank/alternator, I have a WHITE wire and a turquoise/yellow (blue/yellow, maybe?) The blue/yellow wire is either tapped or is a double wire, which is connected at a 3-way joint to a blue wire- it's definitely a hack job. Inside the relay compartment, there is a thick brown wire with a connector