After Market Universal Wiring Harness & Fuse Block?

I think a good approach is to restore the factory stuff, but make the changes required in the engine bay to drive high current things with relays and not rely on heavy current going through little connectors on the firewall.

Thanks for your input, I have done the MADD bypass and have an extra wire from the Alternator to the starter relay, if that is what you are referring to. Thanks again