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<blockquote data-quote="Enjin" data-source="post: 24625" data-attributes="member: 9096">I used the etrailer install instructions for the 2024 (for my 2025). I installed the 2024 hitch on my 2025. The harness has been the issue. The 2025 uses a 4 pin, trailer side Molex part number 33471-0401 while the earlier 2024 Equinox used a 6 pin of the same family. I can't find relays in the 2025 and the fuses are populated under the hood so should 'plug and play'. With the 33471-0401 connected to the 4 pins on the std 4 pin trailer flat conn (like the GM pic in Penright's Oct 10 post)&nbsp; I get no power. One of the 4 pins on the 33471-0401 is ground. I'm wondering if GM now 'code' the hitch power...which would be a PITA.I did contact etrailer re the same, they advised Curt is aware of the '4 pin issue' and&nbsp; 'Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - Preorder # C88RV. ' and the picture of C88RV (as of this posting) on etrailer isn't the pending C88RV. <a href="https://www.etrailer.com/Custom-Fit-Vehicle-Wiring/CURT/C88RV.html" target="_blank">https://www.etrailer.com/Custom-Fit-Vehicle-Wiring/CURT/C88RV.html</a>. FWIW the 33471-0401 is available on Amazon or Ebay. It's typically used for ignition coils.</blockquote>

[QUOTE="Enjin, post: 24625, member: 9096"] I used the etrailer install instructions for the 2024 (for my 2025). I installed the 2024 hitch on my 2025. The harness has been the issue. The 2025 uses a 4 pin, trailer side Molex part number 33471-0401 while the earlier 2024 Equinox used a 6 pin of the same family. I can't find relays in the 2025 and the fuses are populated under the hood so should 'plug and play'. With the 33471-0401 connected to the 4 pins on the std 4 pin trailer flat conn (like the GM pic in Penright's Oct 10 post) I get no power. One of the 4 pins on the 33471-0401 is ground. I'm wondering if GM now 'code' the hitch power...which would be a PITA. I did contact etrailer re the same, they advised Curt is aware of the '4 pin issue' and 'Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - Preorder # C88RV. ' and the picture of C88RV (as of this posting) on etrailer isn't the pending C88RV. [URL]https://www.etrailer.com/Custom-Fit-Vehicle-Wiring/CURT/C88RV.html[/URL]. FWIW the 33471-0401 is available on Amazon or Ebay. It's typically used for ignition coils. [/QUOTE]

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