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Where to Attach Auxillary Power Wire on Vehicle Side 7-Way connector on 2001 Ford F-350  


I want to charge the Aux 12 volt battery on my trailer. Which wire do I use on my 2001 ford f 350. Is it the #4 pin?


Expert Reply:

Yes, you will use the number 4 pin on your 7-way connector, item # PK12703, which may also be labeled Red. The normal attachment is a Black 10 gauge wire to this connection for charging the trailers battery and powering 12 volt accessories.

expert reply by:
Bob G

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