Need a 87 suburban wiring diagram

[danomano]

I am still trouble shooting that short problem I have. I need the wiring diagram if anybody has a better wiring diagram. I got the one from autozone and the one in the Chilton manual but something is confusing me. Since my gauge/idle fuse blows I would like to see what is all on that curcuit. The chilton only shows lights no gauges. And on the back of my alt. I have a brown and a pink/ black wire on 1 and 2 connection. I assume the brown must be the ground for the gen light curcuit which I do not have since it is a voltmeter. and the pink/black is power for the gauges??? as this does not goto the starter.