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Headlight + Fuse Box Question

7K views 2 replies 3 participants last post by  St SomeWhere 
#1 ·
Hello,

I purchased my first jeep about 6 months ago. Its a 2013 unlimited sahara. I purchased the 7inch lantsun LED lights with the halo ring. Im not very knowledgable on the fuse box, but would like to do the install myself. I should have no problem splicing the yellow line into my blinker. However, the red line needs to go to the fuse box. Ive already purchased a 10a add-a-circuit. The problem is I'm not exactly sure where to place it. I read on another forum someone placed it in the M7 slot because they had no rear power outlet. However, my jeep does have that. Here is a picture of my fuse box exactly how it is. Could I get some guidance on where to place this add-a-circuit? Also, should 10 amps be efficient enough for the halos? The halo is not the main headlight, just for looks.

https://mail.google.com/mail/u/0/?u...tt&th=1546a0542599084c&attid=0.1&disp=safe&zw

If I need to verify anything or answer any questions please feel free. I appreciate this forum and anyones help.

Thank you,
PJ
 
#3 ·
I'm also looking into tapping into the fuse box so, still in research mode and would like confirmation from the experienced and knowledgeable.

Regarding the add a circuit. Doesn't it need to be sized based on the existing fuse? The M6 and M7 slots have 20A fuses, so wouldn't you need to get a 20A one? Then, can put in a 20A or small fuse for your accessory (Halos)?

Would the following be the correct way to choose your fuse:
Check the watts in your product specs, divide by 12 (volts) giving you amps, and then round up to the next available size. So, a 10 Amp fuse would be good to 120 watts. I think you want the fuse to be as small as possible to avoid intermittent voltage drops that increase the amps and you don't want to overpower your device with too much current???

Regarding the fuse slot choice - page 188 of the 2015 manual shows the fuses for the power outlets (pic below).
M7 has 3 holes, so it can be used for either battery (always power) or switched/accessory (key on power). When the rear power outlet is battery, M7 is in the battery position (notice the extra hole after the fuse 3 below)
M6 is always switched.
So, your call if you want switched or battery power.

 
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