Cross posting for a broader audience. Seems like this is more active than the v6 forum, but please tell me if I'm in the wrong here.

So, I've been trying to get this thing running again. I backed it up onto some ramps last week, and now it's no longer cranking over. I can't here the fuel pump engage anymore. It doesn't seem like the dash is getting the power it used to either, although it does still light up and do a systems check. Its just.. dimmer. When I do attempt to start it, it clicks and the dash goes dark until I release the key. It has a good agm battery which is fully charged. New ends on the battery cables as well (except for the ends which are connected to the block and wherever the positive cable is going.

Note - Ive been trying to wire in a manual switch for the radiator fan because it wasn't kicking on when it came to temp. I disconnected the cables to the fan and capped them off, routed the black to positive battery (fused), then red to lead on the manual switch, then earth to ground in cabin. Seems to work fine, but I DID plug in the little led light to the fuse panel which quickly got very hot. Disconnected as fast as I could. Buúuut ever since then I havent been able to get it started again..

I also have general wiring questions and pictures in the original post which I'll link here - https://www.thirdgen.org/forums/v6/7...etta-2-8l.html

It's a mess and I have no idea where to even begin. Any help is greatly appreciated