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  1. #1
    Join Date
    Feb 2010
    Raleigh, NC

    Default Replace 5 pin wiring connector with 7 pin?

    The 2012 boatmate trailer came with a 5 pin flat connector, and my tow vehicle has a 7 blade connection. I have been using an adapter for 2 years, but it seems to have a bad connection and one of the taillights operates only sporadically. Rather than buy new adapter, I am thinking of just re-wiring with a permanent 7 blade.....anyone else done this and anything to be aware of?

    I would assume this is a 10 minute, one-beer kind of job. Thoughts?

    2012 Outback V

  2. #2
    Join Date
    Mar 2010
    Irondequoit Bay, NY


    I've done it a few times when I worked at a RV dealership..but that was about 4 years ago

    I'd look up the wiring diagram..when I did would wire up the 7 way in the vehical some of the wires were not red to red or been to green and be switched around
    Last edited by motosno963; 07-07-2014 at 03:46 PM.
    2004 Outback Blue/white w/5.7 indmar 350, Direct Drive
    Rockford fasgate cabins
    Rockford fasgate 500w amp (cabin) and a kenwood HU (kmr700u)
    Exile XM7's
    Exile Harpoon
    Exile ZLD
    Polk 10in sub (2)
    Polk P330 amp (subs)

  3. #3
    Join Date
    Jul 2010
    Dickinson, ND


    Did it on mine as soon as I bought it.. Didn't take but 15min or so .. Nice not having to fuss with adapter
    07 Gravity Games Edition XLV
    -EXiled Out System Amps,Sub,Speakers,etc.. Modified Gravity III Ballast, Blue Leds Throughtout boat, still more to come!

    02 Moomba LSV "SOLD"

    Tow Rig-12' F150 Ecoboost-leveled/intake

  4. #4
    Join Date
    Jun 2008
    Eugene OR


    This was one of the first things I did. I did not cut off the 5-pin connector but got the other side, wired it unto a 7-pin connector and done. This way if I needed too I could go back to the 5-pin in about 3 min. To wire up the 7-pin tool about 20 min. To connect this to the existing 5-pin connection was just back feeding the 5-pin into the hitch and plugging the connections into eachother. The last image was showing the 4-pin connector but the 5-pin connector is plugged in the same way and in the same place.

    2008 Outback V - Sold but never forgotten.
    “Do not wait; the time will never be “just right.” Start where you stand, and work with whatever tools you may have at your command, and better tools will be found as you go along." -Napoleon Hill

  5. #5
    Join Date
    Aug 2013

    Default Replace 5 pin wiring connector with 7 pin?

    This sounds exactly like my 2012 trailer. One light was very sporadic. I replaced it with this:

    Took about 15 minutes, and has made life much easier.

    Be sure to look up the wiring diagram, because the colors mean different things depending on the type of plug. A DVM also comes in handy to double check continuity.
    2016 Mojo
    2012 LSV (sold)

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