JDM vs USDM Wiring (for alarm install)


New Member
Jul 14, 2014
Hey guys,

I just picked up a JDM '96 (NA) a couple of weeks ago, and I'm trying to get an alarm installed. My problem is that the wire colour coding seems to be different than expected - any search results I get all point to the same colour wires for the same circuits, but in practise that's not the case - ie in the steering column the solid green wire is allegedly for my parking lights, but it actually controls my horn (fun figuring that out). Needless to say, it's made wiring things like lights and doors nigh impossible when it could be any one of a few dozen different wires. Does anyone have experience with this? Are the jdm models wired differently than the USDM or UK market supras? If so does anyone happen to have a reference file or somewhere I can go to look to figure it out?

'ppreciate any help!