Here is the engo harness. Can the negative go to one of the bolts by the battery or should it go to negative terminal?
View attachment 70228
The other harness for my other two single leds is similar to engo harness but the switch has its own positive and negative. I know the switch positive goes to battery but it doesnt have inline fuse. Only the relay positive does. Also the switch has a negative. Where is best place near firewall on drivers side to attach negative?
The ENGO harness ground can go to either a bolt or the negative, whatever is easier.
Your other switch needs a fuse. If you get a fuse with the correct amperage you can tie both positives into one and run it to the battery. You can ground it on the drivers side dash behind the panel. There should be two bolts there that will be fine for grounds.
Thanks.
The other switch is supposed to be plug and play. Wonder why it didnt come with a fuse? The two lights are 18w each I believe. Would a 15 amp fuse be good?
Closeup of switch:
View attachment 70231
Switch positive and ground:
View attachment 70232
Relay end:
View attachment 70233
You'll be fine with that harness. I have a very similar one and I just plugged it into the battery.
Yes - 36/12=3 amps is correct- go with the 5 instead of the 30
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The 30 amp fuse would still blow if there is a serious problem like a short. Yes, it could allow the wires to get pretty hot before it would blow, but you said 14-16 gauge wiring, if it was 18-20 gauge wires, I would be concerned.
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^ then be glad you aren't going to use the 30 amp fuse :thumbup:
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