Same for me. One connector to the BCM needed and inch or two extra, it got four-ish.The one place I wish I would have done the harness differently is at the BCM connection. It's very tight there and I wish I had about an inch extra. Fitting it before wrapping it completely should let you make small adjustments like that.
I've been told, in Auto Wiring, that going larger is always better but only about 2 gauges larger. Thinner is a no-no.No harm using an extra heavy wire. I used the leftover wire from thinning my harness... tried to match the wire gauge and color, but couldn't always find the right color. Always used the correct gauge or heavier gauge.
All I know is every time I've run into repairs done with that stranded 110/220 wire I got burned(literally, I usually found it the hard way, with the skin on my finger tips) because the stuff got hotter than the hubs of hell!The real difference on the THNN stranded wire and automotive as far as the diameter of the individual strands is the lesser flexibility and more likely to fatigue and break. You can even use solid copper wire from a current/resistance standpoint. No problems other than connection issues as far as going 2x or more larger.
I didn't spend a lot of time looking, but I couldn't find a chart that listed amperage of wire by wire type. I think it's very close, if any different, when in similar conditions.All I know is every time I've run into repairs done with that stranded 110/220 wire I got burned(literally, I usually found it the hard way, with the skin on my finger tips) because the stuff got hotter than the hubs of hell!
In virtually every case someone had replaced a "fuseable link" wire that burned up with that Construction wire. Now when working on older stuff IF I see "wire nuts", I get cautious! I can understand using it to get home, but if its still there when I'm looking at it, I'm looking at something that has probably been hacked/repaired in multiple spots. Repairs done with bits of Romex really worry me!
I also have an 06 LSJ, that I took 2 videos of the wiring harness.
From my build thread index,
Electrical diagrams:
My 2006 LSJ electrical harness videos here.
AllDataDIY Login