So a few weeks ago I was having some starting issues, there was high resistance in my starting system. So bad that I smoked my CB radio 
So I tested the battery (new AGM) no issues there, Voltage was 13.9 and load tested perfect. I removed the wiring for the CB to eliminate that, no change. Replaced my fuseable link, no change. Starter certainly saw better days, so I swapped it out with a genuine Toyota reman unit. No change
So I start inspecting cabling, all my grounds looked horrible, not the attachment point but the actually copper wiring. Ordered a "Big 7" kit from "Toyota Cables aka Jeep Cables" and I got them within three days. I can't say enough, good comments about them from the fact they're made in the USA the high-quality cabling with the fine strand and the labeled ends, it was a breeze to instal.
Rig immediately started, cranked over faster than ever. Windows went up and down faster than I could imagine... best mod to date. I still need to do the Alt. to Batt+ cable and fuse, as well as the Batt+ to Fuse block. I'll tackle that once I install my dual battery set-up.

So I tested the battery (new AGM) no issues there, Voltage was 13.9 and load tested perfect. I removed the wiring for the CB to eliminate that, no change. Replaced my fuseable link, no change. Starter certainly saw better days, so I swapped it out with a genuine Toyota reman unit. No change

So I start inspecting cabling, all my grounds looked horrible, not the attachment point but the actually copper wiring. Ordered a "Big 7" kit from "Toyota Cables aka Jeep Cables" and I got them within three days. I can't say enough, good comments about them from the fact they're made in the USA the high-quality cabling with the fine strand and the labeled ends, it was a breeze to instal.
Rig immediately started, cranked over faster than ever. Windows went up and down faster than I could imagine... best mod to date. I still need to do the Alt. to Batt+ cable and fuse, as well as the Batt+ to Fuse block. I'll tackle that once I install my dual battery set-up.