I'm currently doing a EZ 12 circuit harness in mine.
if you have a chevy, its a weekend job, anything else is going to take a little bit longer cus the instructions suck. there allot better then when i did my first two tho. but the wires don't match to what they say they go to.
as long as you wire in your alternator right :-[ its a easy,good kit.
but you need to do some research and make a phone call or two...witch i have provided on threads on heir ;D
its a grate kit for the price...tho it's mainly a chevy/hotrod harness, and if you want to run chevy switch's witch is what i did with my f250 high boy, its cake.
you will need to get a chevy switch for the brights,so that the plug in the kit will plug into it. 70's-80's chev truck.
well, im going back out to finish it up
............i hope.