Trailer Wiring Harness Recommendation for a 2004 Pontiac Montana
Question:
My 2004 Pontiac Montana came with a compressor unit where trailer wiring has been installed leaving with 6 bare wires coming out only and in the following color coding / function: 1- White Ground 2- Orange Power - Hot at all time 3- Yellow Left Turn 4- Green Right Turn 5- Brown Park/Tail 6- Red Brake How can I make this connection to work for this part #47305B since wire plug from trailer is a 4 flat wire? Or should I be using a different part? Thank you for your expert advice in advance.
asked by: Jason T
Expert Reply:
Actually, all you will need to do is install a wiring harness, # C55355, on your 2004 Pontiac Montana. But if you wanted to use those factory wires, because you have separate wires for turn signals and brake lights, you would first need to install a converter.
The converter, # RM-732, takes the separate signals and combines them which is what a trailer uses. To wire it up your yellow wire will go to the yellow wire on the converter, green will go to green, white will go to white, and red will go to red. On the output side you would get a 4-Way flat vehicle side, # 18172.
Then you would attach the yellow to yellow, green to green. Then you would take the brown wire on the vehicle and connect to the brown on the 4-Way. The white wire on the 4-Way will be grounded to the vehicle frame. In my opinion, it would be much easier to use # C55355. I have linked a link to the instructions for you.
Products Referenced in This Question
4-Way Flat Trailer Connector w/ 72" Harness
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 4 Flat
- Draw-Tite
more information >
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- Custom Fit
- 4 Flat
- CURT
more information >
Roadmaster Brite-Lite Wiring Converter
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Tail Light Converter
- Universal
- Roadmaster
more information >
Product Page this Question was Asked From
Adapter 6-Pole Round to 4-Flat with Cover
- Trailer Wiring
- Wiring Adapters
- Single-Function Adapter
- 6 Round
- 4 Flat
- Hopkins
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Does Replacement Reed Switch with Bracket for SMI Air Force One SM6272 Include LED
- Q&A: Repair Kit Availability for a 5125 Valley Coupler
- Q&A: Replacement Slide Out Motor and Gearbox for 13-1109 Motor and Gear Box # 521066W on 2003 Fleetwood
- Article: We Used 34 RV Tow Bars, and These are the Best for Flat Towing
- Q&A: Replacement Motor for Slide Out Motor with Part # 8532-18HT
- Q&A: Replacement Rear Hub Caps PH1764 for Freightliner Custom
- Q&A: Replacement Stereo Recommendation for a Axxera AV614BH
- Q&A: Pin Locations On 4-Way Round and Flat Connectors
- Article: Roadmaster Vehicle Specific Base Plates
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)
- Article: Wiring Trailer Lights with a 5-Way Plug (It's Easier Than You Think)
- Article: Trailer Hitch Installation Tips
- Article: How to Clean Weld Nuts for the Installation of a Trailer Hitch | etrailer.com
- Article: Diode Installation Instructions for a Dinghy with Separate Tail Light Wiring