I had to make a custom wire harness to connect a Mod Motor underhood wire system to an '88 Mustang dash.
In the '88, there is a bundle of wires that goes thru the firewall with a rubber grommet next to the steering column, then connects to various harnesses in the engine bay. In the '98, the harnesses have connectors at the firewall or behind the kick panel on the passenger side. I had to go into the bundle in the '88, trace each wire individually, and determine where it connected to the '98 wiring. Many of the wires in the bundle go to the connectors behind the passenger side kick panel, therefore the need to jumper across the backside of the dash. I also made provision for some creature features, like power windows, power mirrors, and door locks.
Here's a picture of the completed harness. It's about 6 feet long overall, has 14 connectors (from Motorcraft, Radio Shack, and the junkyard), and I lost count of the individual wires and pins but each one has conductivity to the right place. A lot of thought, a lot of work, and a lot of solder (not to mention burn ointment) went into this harness.
If anyone needs help or wants ideas on how to wire a Mod Motor, send me a PM. I'd like to hear from you.
In the '88, there is a bundle of wires that goes thru the firewall with a rubber grommet next to the steering column, then connects to various harnesses in the engine bay. In the '98, the harnesses have connectors at the firewall or behind the kick panel on the passenger side. I had to go into the bundle in the '88, trace each wire individually, and determine where it connected to the '98 wiring. Many of the wires in the bundle go to the connectors behind the passenger side kick panel, therefore the need to jumper across the backside of the dash. I also made provision for some creature features, like power windows, power mirrors, and door locks.
Here's a picture of the completed harness. It's about 6 feet long overall, has 14 connectors (from Motorcraft, Radio Shack, and the junkyard), and I lost count of the individual wires and pins but each one has conductivity to the right place. A lot of thought, a lot of work, and a lot of solder (not to mention burn ointment) went into this harness.
If anyone needs help or wants ideas on how to wire a Mod Motor, send me a PM. I'd like to hear from you.