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Trailer Wiring Harness Installation - 2003 Pontiac Grand Prix Video

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How to Install a Trailer Wiring Harness on a 2003 Pontiac Grand Prix


Today on our 2003 Pontiac Grand Prix, we'll be installing a new 4-pole flat connector, part number 18252. Next let's show you how to use your new 4-pole harness. We'll simply take it out of the spare tire well and route it out of the trunk. Be careful; stay away from the trunk latch as pinching it off in the latch can harm the wire. However, the trunk seal is thick enough that it won't, and we can… see more >     


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