New alt has 4 wires - alterstart says the only one of them is needed (switched, pin L) to get it to work. I thought the Isuzu one had 3 but 2 would be easier - switched and hot always.
How many pins does the 150 above have? Did it come with the needed pigtail?
I will put a 180 amp fuse going to the battery and leave the other wires going to the distribution block.
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