Do I need a new wiring harness for each new aux light?
Thread Starter
Member
Joined: Apr 2012
Posts: 246
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From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
I recently took a job at a local ski slope snow making and grooming. I barely made it off the mountain a few nights ago, leaving at 1am in thick fog (I think it may have been a cloud) while it’s snowing.
The guys say I need fog lights so I have some ordered along with a wiring harness.
I recently upgraded the headlights with a new wiring harness and led headlights which are crap and I will be returning and replacing with something you guys recommend.
So it look like i have two questions.
1. Do i really need a separate wiring harness for each new aux light I install? I bought two rocker switches thinking i might install another light somewhere after I install and try the fog lights. Looks like these woring harnesses all do two lights and one switch.
(The fog lights and many other aux lights come in twos. Hope that’s not confusing. Im talking about a harness for each lighting system or line maybe? Don’t know the terminology.)
2. What kind of headlights (on a budget) do you recommend for harsh weather and mountain conditions?
you guys rock
The guys say I need fog lights so I have some ordered along with a wiring harness.
I recently upgraded the headlights with a new wiring harness and led headlights which are crap and I will be returning and replacing with something you guys recommend.
So it look like i have two questions.
1. Do i really need a separate wiring harness for each new aux light I install? I bought two rocker switches thinking i might install another light somewhere after I install and try the fog lights. Looks like these woring harnesses all do two lights and one switch.
(The fog lights and many other aux lights come in twos. Hope that’s not confusing. Im talking about a harness for each lighting system or line maybe? Don’t know the terminology.)
2. What kind of headlights (on a budget) do you recommend for harsh weather and mountain conditions?
you guys rock

Last edited by lucknuts; Dec 3, 2023 at 01:04 PM.
Senior Member
Joined: Oct 2020
Posts: 934
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From: PA
Year: 1994
Model: Cherokee (XJ)
Engine: 4.0
No, you shouldn't need a separate wiring harness for each aux light unless it's a monster pulling >10 amps. You just need to cut the wire somewhere towards the end and splice the wiring together to power both lights.
I've been very happy with Wagner BriteLite bulbs. The issue with most LEDs is they don't create enough heat to melt away any snow or ice. The good, >$400 LED headlights have heaters built in to fix the issue. Good ol' regular bulbs don't have that issue and the BriteLite bulbs are very nice...
I've been very happy with Wagner BriteLite bulbs. The issue with most LEDs is they don't create enough heat to melt away any snow or ice. The good, >$400 LED headlights have heaters built in to fix the issue. Good ol' regular bulbs don't have that issue and the BriteLite bulbs are very nice...
CF Veteran
Joined: Jun 2022
Posts: 1,110
Likes: 232
From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
!. No more than you need a separate harness for each headlight. All you need is a switch, a relay, a fuse, some wire & connectors: Power to the lights come from the battery, via the the fuse & the relay, which triggered by the switch.
2. PAL headlights with all weather bulbs.
2. PAL headlights with all weather bulbs.
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Joined: Dec 2018
Posts: 841
Likes: 438
From: Harrisburg,Pa.
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0L
Most offroad light kits will have either the harness available or included in the box.. The whole kit with the harness and relays is the easy way out...
Thread Starter
Member
Joined: Apr 2012
Posts: 246
Likes: 19
From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
Found a cool place to mount the hot wires on the side of the fuse box and the main ground is right there too.
Thread Starter
Member
Joined: Apr 2012
Posts: 246
Likes: 19
From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
!. No more than you need a separate harness for each headlight. All you need is a switch, a relay, a fuse, some wire & connectors: Power to the lights come from the battery, via the the fuse & the relay, which triggered by the switch.
2. PAL headlights with all weather bulbs.
2. PAL headlights with all weather bulbs.
CF Veteran
Joined: Jun 2022
Posts: 1,110
Likes: 232
From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Very commendable; too many people are not so bothered.
So you should be thinking about the right gauge wire, proper connections, a plug for the relay, rather than a handful of spade terminals, investing some time in careful routing of wires (wherever possible following the factory harness), electrical tape & zip ties at regular intervals.
I've been upgrading headlights & adding auxiliary lamps since I was at school (& the cars I had didn't have fuses - well, maybe 2 - never mind relays) so, I suppose, it's been a lifetime's interest, but none of it is difficult - & there's plenty of help at your fingertips now. Good luck
So you should be thinking about the right gauge wire, proper connections, a plug for the relay, rather than a handful of spade terminals, investing some time in careful routing of wires (wherever possible following the factory harness), electrical tape & zip ties at regular intervals.
I've been upgrading headlights & adding auxiliary lamps since I was at school (& the cars I had didn't have fuses - well, maybe 2 - never mind relays) so, I suppose, it's been a lifetime's interest, but none of it is difficult - & there's plenty of help at your fingertips now. Good luck
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Thread Starter
Member
Joined: Apr 2012
Posts: 246
Likes: 19
From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
Very commendable; too many people are not so bothered.
So you should be thinking about the right gauge wire, proper connections, a plug for the relay, rather than a handful of spade terminals, investing some time in careful routing of wires (wherever possible following the factory harness), electrical tape & zip ties at regular intervals.
I've been upgrading headlights & adding auxiliary lamps since I was at school (& the cars I had didn't have fuses - well, maybe 2 - never mind relays) so, I suppose, it's been a lifetime's interest, but none of it is difficult - & there's plenty of help at your fingertips now. Good luck
So you should be thinking about the right gauge wire, proper connections, a plug for the relay, rather than a handful of spade terminals, investing some time in careful routing of wires (wherever possible following the factory harness), electrical tape & zip ties at regular intervals.
I've been upgrading headlights & adding auxiliary lamps since I was at school (& the cars I had didn't have fuses - well, maybe 2 - never mind relays) so, I suppose, it's been a lifetime's interest, but none of it is difficult - & there's plenty of help at your fingertips now. Good luck

Thread Starter
Member
Joined: Apr 2012
Posts: 246
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From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
One weird thing is going on. The way they installed they are at their limit of travel in the up/down swivel direction. I pointed them as high as they seemed to go. It in the pics the beams appear to be pointing too far down at the road. (I noticed driving with them that I couldn't see the spots from them and only a lot of yellow flood light.)
Did i maybe install them upside down? The other direction would seem to point the lenses more downwards. But do the beams come out at an angle on these things?
Did i maybe install them upside down? The other direction would seem to point the lenses more downwards. But do the beams come out at an angle on these things?
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Joined: Jun 2022
Posts: 1,110
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From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Well done.
Have to say they look a lot brighter than my Hella fogs [generally reckoned to be (among) the best], with 100w bulbs, but without any info. as to your actual lamps it's difficult to advise. However, if you want more illumination nearer the front of your Jeep, you need to lower their adjustment.
Most lamps are designed to be mounted either way - but the lens/reflector is not, which is why they can be inverted within the shell. Often they are marked "top" at the top, otherwise just make sure the maker's name (or any other script, even "DOT") is the right way up.
Have to say they look a lot brighter than my Hella fogs [generally reckoned to be (among) the best], with 100w bulbs, but without any info. as to your actual lamps it's difficult to advise. However, if you want more illumination nearer the front of your Jeep, you need to lower their adjustment.
Most lamps are designed to be mounted either way - but the lens/reflector is not, which is why they can be inverted within the shell. Often they are marked "top" at the top, otherwise just make sure the maker's name (or any other script, even "DOT") is the right way up.
Thread Starter
Member
Joined: Apr 2012
Posts: 246
Likes: 19
From: Santa Fe, NM
Year: 1993
Model: Cherokee
Engine: 4.0 Inline 6
Well done.
Have to say they look a lot brighter than my Hella fogs [generally reckoned to be (among) the best], with 100w bulbs, but without any info. as to your actual lamps it's difficult to advise. However, if you want more illumination nearer the front of your Jeep, you need to lower their adjustment.
Most lamps are designed to be mounted either way - but the lens/reflector is not, which is why they can be inverted within the shell. Often they are marked "top" at the top, otherwise just make sure the maker's name (or any other script, even "DOT") is the right way up.
Have to say they look a lot brighter than my Hella fogs [generally reckoned to be (among) the best], with 100w bulbs, but without any info. as to your actual lamps it's difficult to advise. However, if you want more illumination nearer the front of your Jeep, you need to lower their adjustment.
Most lamps are designed to be mounted either way - but the lens/reflector is not, which is why they can be inverted within the shell. Often they are marked "top" at the top, otherwise just make sure the maker's name (or any other script, even "DOT") is the right way up.
These are just inexpensive LEDs from amazon. I will just have to find the time to mess with them i guess thanks
CF Veteran
Joined: Jun 2022
Posts: 1,110
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From: England
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
LED's are always bright but all too often not so good at putting light on the road (particularly true of LED replacements for halogen bulbs - although rumour has it, they're getting better).
Difficult to tell from your piccie as you've got headlights on as well but as the light is quite yellow, & your headlights aren't, it does suggest the fogs are putting out a decent amount of light (unfortunately, they're not legal here).
Not sure about LED's having a right way up but I've got one I had to take off my KJ, so I'll have a look at the weekend.
Difficult to tell from your piccie as you've got headlights on as well but as the light is quite yellow, & your headlights aren't, it does suggest the fogs are putting out a decent amount of light (unfortunately, they're not legal here).
Not sure about LED's having a right way up but I've got one I had to take off my KJ, so I'll have a look at the weekend.
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