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Old 10-13-2013, 11:52 AM   #1
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Removing 7pin trailer harness for 4pin

Ok, So I have the factory installed mopar 7pin trailer harness, I've removed the 7pin female plug from the harness and looking at cutting off the plug that snaps into the back of the 7pin female plug and wiring in a 4pin.

However, the colors on the actual harness are as follows:
yellow (Left turn)
green (right turn)
white (ground)
black (12+)
white (ground)
purple (brake controller)
blue (reverse lights)
green (? is this my tail/running lights?) - I don't have a brown wire!

I'm at work and don't have access to a volt meter at the time.

Am I right to assume that other green wire above the blue is my tail lights?
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Old 10-13-2013, 11:57 AM   #2
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why not leave the 7-way connector and just get an 7-pin to flat-4 adapter?

the 7 way has its advantages...in fact, i spent a lot of time wiring in a 7-way/flat-4 combo....

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Old 10-13-2013, 11:57 AM   #3
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Why not just get a 7 connector to 4 flat connector adapter? They simply plug into the 7 pin round connector & convert it to a 4-pin flat connector. That way you're ready for either style connector & is what I do.

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Old 10-13-2013, 11:58 AM   #4
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Old 10-13-2013, 12:10 PM   #5
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I have that adaptor already but I removed the factory mopar hitch receiver and when you do the 7pin female plug that snaps into the harness is extremely bulky and not the same as a normal 7pin plug, it has additional plastic built in around it. the mount for the plug is built into the mopar receiver and this plug would just dangle from my frame. I was just trying to clean it up with my new rear tire carrier.

If I could mount the 7pin female plug up underneath, I guess that would work but didn't really see anything to mount it to.
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Old 10-13-2013, 12:19 PM   #6
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My 7-pin mounting bracket is mounted on top of my bumper.
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Old 10-13-2013, 12:20 PM   #7
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Quote:
Originally Posted by 05LJTampa View Post
I have that adaptor already but I removed the factory mopar hitch receiver and when you do the 7pin female plug that snaps into the harness is extremely bulky and not the same as a normal 7pin plug, it has additional plastic built in around it. the mount for the plug is built into the mopar receiver and this plug would just dangle from my frame. I was just trying to clean it up with my new rear tire carrier.

If I could mount the 7pin female plug up underneath, I guess that would work but didn't really see anything to mount it to.
I made a mount on the top of my bumper for the 7-pin connector. I used a Hopkins 7-pin + 4-pin combo plug that's bigger than the Chrysler unit you have... Adapter 4 Pole to 7 Pole and 4 Pole Hopkins Wiring 37185

i've used this adapter, and it's not bulky or awkward, IMO...
Seven-Way RV Blade to 4-Wire Flat Adapter

this is also another option:
Seven-Way RV Blade to 4-Wire Flat Adapter with Flex Cord
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Old 10-13-2013, 12:27 PM   #8
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thanks guys...you've talked me into keeping it on there and I'll zip tie it inside my rear frame rail for now until I fab up a bracket to mount to my rear frame crossmember to keep it tucked up and hidden and use the current 7pin to 4pin adaptor I have for time being. Dont have room on bumper unless it were to stick out below.

I tow a small 4pin trailer on a weekly basis so was just trying to simplify things but I guess I can make what I have work.
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Old 10-13-2013, 12:32 PM   #9
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Wow, I had to pay $100 at my dealer for this harness. It does not come with the current Wranglers. You only get a 4 pin with their high priced tow package. Keep it man. You may decide you want a trailer with electric brakes later. Then you can just add a brake controller and take off.

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