How to Add 4-Way Connector to 2003 GMC Envoy with an OEM 7-Way
Question:
I bought a curt 56515 uscar custom wiring connector, but it doesn fit in my factory port which i took a pic of. It even says Gm on port cover flap
asked by: Jeffrey G
Helpful Expert Reply:
Thank you for the photos!
It looks like you're trying to plug the Curt T-Connector # C56515 directly into the 7-Way blade connection on your 2003 GMC Envoy, when this wiring is actually designed for you to disconnect the current 7-Way connector from that US CAR connection. In the second photo you sent in (from behind the 7-Way) you can see where your OEM plug meets the back of the 7-Way connector - that's where you'll disconnect it.
Since I imagine you're wanting to have the 4-Way connector and the 7-Way connectors readily available I recommend using the Curt T-Connector # C55384 which tees in behind the 7-Way but it actually has an output US CAR on it as well so your OEM 7-Way can plug in.
For an all-in-one system we also have the Curt # C55774 which places both connectors neatly next to each other and can be secured to your trailer hitch with the No-Drill Bracket # C57202.
I've linked some installation videos you can reference for the installation.
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Products Referenced in This Question
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- CURT
more information >
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- 7 Round - Blade
- CURT
more information >
Curt No-Drill Bracket for 6-Way or 7-Way Round Trailer Connector Mounting Bracket - Long
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 6 Round
- 7 Round
- CURT
more information >
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 5-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 5 Flat
- CURT
more information >
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