Here is a tip for anyone integrating a 2jz wiring loom into the MKIII chassis:
In combination with the site already posted, print out a copy of both the TCCS wiring diagram from cygnusx1.net and the downloadable version of the 95 Supra PDF manual. By comparing the inputs/outputs of both you can get a good idea of what you need to make each wire do.
This is especially important if you are integrating a standalone. When integrating my 2jzgte AEM into the MKIII chassis, I had to figure out what wires I could live with, without, and what I had to do to others to make it work. The best way I found to do it was just by looking at the wire diagrams and connecting everything accordingly.