wiring

To start off with I know less than nothing about electrical wiring . The problem I'm having is I'm trying to wire my new build that has no wires at all. I have a Hot Rod wire , 18 circuit universal harness. It's labeled just fine but trying to switch from mopar wires to these wires is killing me. I no longer have wipers , heater , a/c all that kind of thing. I still have lights and turn signals and all of that. . Is there something out there that can tell me what wire is for what in the mopar stock harness. I have a blown up diagram but obviously that isn't helping me much. HELP !!!!!!