Quote:
Originally Posted by sroth004
I bought an LED adapter plug from U-Haul a few years ago after having this issue with OEM hitch/harness but have not towed since and cannot confirm the adapter solves the problem. Reviews are positive though. Also, it converts to a 4 pin plug which may or may not be appropriate for your use.
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One of the reviewers has an E53 X5 and says it fixes the flashing but not the dash error. It's too bad it restricts you to a 4-pin plug.
It looks Like Curt #57003 is what you want to adapt to LED lights and keep a 7-way plug.
https://www.curtmfg.com/part/57003