Trying to figure out what I need. I know the M&H from year one is a plug and play but will it work good with accessories. I have stuff like Vintage Air, Electric Fans,Stereo System,12v access., Dakota Digital Guages and 120 Amp Alt. If I went with aftermarket also I wonder would be hard to figure out the Headlight door wiring? I want a complete Harness from the front to the back. Thanks!