The other day I went to replace the headlight assemblies on my Altima, due to the practically non-existent light output from the low beams. Once I got the assemblies out, I discovered they were full of dirt and grime, and practically all of the unsheathed wiring was rotten to the point of some of them snapping from just the weight of the bulb. I bought a new sub-harness from the dealer. I figured it would be easier to replace the whole thing, rather than trying to splice all of the rotten wires. That, and while I'm pretty handy, and do most of my car repairs, I'm not super comfortable with most things electrical. My guy that helps me with my electrical work is out of town for a week, and my friend is on my butt to get the car out of her garage like yesterday. The replacement looks pretty straightforward if I just follow the old one with the new one, but I'd feel more comfortable if I could get a hold of some instructions, tips, tricks, or "should know beforehands" before tackling this project. I bought an All Data subscription for my car, but it has nothing on replacing wiring. Could anyone point me in the right direction? Thanks.