jvoortman Posted April 8, 2005 Report Share Posted April 8, 2005 is there an existing trailer wring harness in trunk somewhere? (98 Deville 4 dr) I need to hook up some trailer lights, so I bought one of those sets like you would see a tow truck use when pulling a car (magnetic light holders), and someone told me there should be a place where I could just plug them in to an existing wiring harness. Any Ideas??? Also...I was reading elsewhere that replacing the plugs can really improve the fuel mileage...what type would you recommend? Link to comment Share on other sites More sharing options...
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