Davey: Get those battery cables clean! 1. it will sooner or later not start, 2. It also makes it tough to take a charge. If you do not have a good battery cleaner I have used: Pepsi, or baking soda water just wash it off good.
Now for the wiring to many times I have seen a prject burn because of improper wiring, crimps, such. The new wiring harness w/time are pretty good. I own one. Alan has a great article worth reading!! Pops
popcorn The Truth is Out There (Do it right 1st time my friend) Ben