Warning: For cars without traction control (unless you use a different momentary switch). Will need to solder. I will not take responsibility if you mess up your remote or your car.
Tools:
-Solder Iron
-Wire Cutter/Stripper/Crimper
Parts:
-Wiring
-Garage remote
-Trac OFF button
-Splice Connectors (wire taps)
First thing I did was diassemble my garage door opener. A Genie Intellicode.
IMG_0074 by
jlauu, on Flickr
IMG_0075 by
jlauu, on Flickr
I then soldered my wiring that will connect to my momentary switch.
IMG_0079 by
jlauu, on Flickr
I felt like making it removeable so i didnt solder the power connections. I instead used Male pin connectors.
IMG_0078 by
jlauu, on Flickr
I then went and cut the White/Black wire(about 3in from connector) on the Trac OFF connector and spliced my soldered wire(silver) to the connector side and my ground (also silver) to the other side of the cut.
I also cut the GRAY wire on the Trac OFF connector and spliced the other soldered wire to it. (gold)
For power I tapped into the Thick Blue wire at the Fuse Box(driver side) which is always on.
All you need to do is figure out which side is positive(left side) and which side is negative (right side; larger contact area)
Sorry, it might be really confusing since i used audio speaker wire to wire this up because it was the only wire i had laying around. If you use the same Genie Intellicode remote, you might want to buy an extra one for 18.50 from amazon.com
Edit: I forgot to mention. If you did not cut pin 2 or 3 on your trac off connector your button will light up with the dash lights when the low beams turn on