Post by
RobertsnewQ »
https://forums.nicoclub.com/robertsnewq-u29366.html
Fri Jul 22, 2005 7:08 am
I just did it last weekend (93).
I would pay someone unless you are VERY comfortable with wiring. If you can understand every diagram in the electrical chapter of the FSM and you know how to solder then you should be OK. To tell you the truth, I'm somewhat of an electrical specialist and I thought it was a huge pain. Try to find a good installer, not just whoever is cheapest. There are some tricky spots in the install - the Q has a VERY complicated electical system and a sloppy install can cause all kinds of trouble.
You have to disassemble the entire front and underside of the dash. Door lock and trunk release wires are buried in the left hinge panel (on two of three connectors that you have to pull out from the cavity there). You also have to wire it into (or disable) the factory theft control module (behind and above the glovebox, not the ABS module).
I installed the module behind the gauge cluster to the underside of the dash frame. The model I used (Viper 160xv) has a remote start, which required cutting and splicing into all of the ignition switch wires (I didn't want to do it that way, but I couldn't find two factory plugs to make a y-harness). The Q is pretty good because all of the ignition wires have relays and your harness won't be carrying real heavy current.
I crimped, soldered and heat-shrink covered all connectors, and taped all the wires into harnesses with loom tape (not cheap electrical tape). I used scotch-lock connectors to tap into signal (low current) wires, but all the high-current connections are soldered.
I also wired it up with driver's priority unlock and used the aux. channel to open the sunroof. Both the priority unlock and the trunk release required relays. The sunroof I just triggered the factory relay with the aux negative output. Same for the parking light flash and horn. OH, and the horn wires are in the airbag harness/connector, so DO NOT PROBE THEM UNLESS YOU'VE DISCONNECTED THE AIRBAG CONNECTOR!!!!! The factory wiring diagram gives the wrong colors here too, so it's even harder, but the connector pin-out in the FSM is correct.
If you're serious about doing it, shoot me an email and I can give more details. It's not a job for someone who has never worked on automotive electrical systems, though. I have several years of experience building harnessses for race cars and even I was challenged.
Oh, and if you have a 94-96 with the integrated body control module, I can't help you. As Maxnix said, the LAN makes it harder (but not impossible).
Modified by RobertsnewQ at 11:23 AM 7/22/2005