This four pole wiring harness should work.Have you been able to find any trailer wiring that goes with that Receiver Hitch? Will work for a cargo basket I guess.
And if you google "curt 13493 wiring harness" you'll come up with a page that has a link to Amazon that has dozens of different Curt wiring harnesses that will work with that hitch.
https://www.google.com/aclk?sa=L&ai...=2ahUKEwjL--LU28X3AhX3m2oFHYIGBHIQ0Qx6BAgCEAE
Sponsored