If it's anything like the juice w/ attitude i just hooked up on a cummins, the EGT cable goes to the central control box for the evo, and then the monitor is ran from a seperate cable coming out of the box(a gray wire)
I believe it was a yellow and red wire you have to connect to the box.
4x4 DRW CC LB 6 spd
FBD 4" w/muffler, S&B CAI, Edge Evo I, low-rise tanneau cover, SBC ConO, SPA 2-in-1 digital pyro/egt guage.
42' GN Enclosed trailer w/ LQ
1999 Trans Am
275 Drag Radial N/a