My 88 MJ/Comanche is about as de-optioned as it gets. For example, it has no cigarette lighter. I bought an aftermarket one but wondering where to wire it. There are a bunch of unused plugs under the dash in the wiring harness, maybe one of those went to a cigarette lighter in stock configuration? That would save me having to cut into the harness or jump into the fuse box.

 

do you want it to work all the time or just when the truck is running or in accesory mode

 

Probably just accessory mode. The only advantage that I can think of to have it running all the time is for charging a cell phone or something like that and being able to walk away from the truck. But at this point, whatever works easiest and safest. I'd kind of like it to still be fused which is why I'd like to go through the plug.

 

http://www.comancheclub.com/forums/v...8761&view=next look for these connectors

 

I couldn't find any info on the wiring there, just lights. Thanks though, maybe I'll put up a post on the Comanche club.

 

get a test light at the out parts stor and check the open slots on your fuse box. you will see that slots 3, 10, 12, and 14 in the fuse box are empty. One of those(i can't remember off hand which) is a accessory hot. Wire your cig lighter to that and ground the other side. It will work when the key is on only that way. Thats how I have all my fogs wired so I don't kill the battery if I accidentally leave one on.

 

look for these connectors from factory harness

 

the black wire on the lighter... do you know wjere that goes? My cigar lighter and cd player stopped working

 

Check fuses yet ?

 

No, you don't kind of want it to be fused. It MUST be fused, somewhere.

Cig lighters, when actually used as cig lighters, draw a lot of current. If you aren't 100% sure of where you are connecting it, don't. Just because you can measure 12v there, does not mean it's safe to connect. The wiring has to be of adequate size to carry the current without melting. If you find a wire that goes to an unused fuse position, and just plug in a 20A fuse, you might be running that current on a while that is only adequate for 5 amps.

Fire & vehicles is a bad mix.

 

That's the ground wire. If the CD and cig lighter ground to the same place, that could be your culprit.