So I have had my land cruiser and honestly I love this car, even more whenever it would run. The PO had installed a stereo in it very poorly. after a while it turned over but wouldn't start and I found out the Fuel pump wasn't kicking on so I replaced it and still the same problem, after some digging I found that the voltage through the firewall to the fuel pump was too low, I found a solution(bypassed straight to battery at firewall) but it still wouldn't start. I hate that I just let it sit for so long without working on it(about 3 years in a field) but I getting back into it, it still has power when I hooked it up the battery but Im a bit lost on where to take it from here or even how to diagnose it, Ive replaced the ignition switch and nothing changed, Im guess im just a bit lost on where to start and thought this would be a good place so any help would be greatly appreciated!