Diffuaculty wiring 7 waytrailer hitch wiring 07 trailblazer

I have a 7 pin round tail/brake/blicker/anti brake reverse all I can manage to get working are the right/left brakelight/blicker can’t get the taillights on.

Here’s what I’ve connected all from trailer end plug.

pos1- ground black

pos7 trailer antireverse lockout. black
pos5 green
pos2 yellow

Pos3 tail light brown from yellow/green
I do have continuity on my wiring, and I’ve checked all the fuses under the seat all have continunity.
Not yet checked at the underhood fuse block there’s these associated w/ trailer
4 Back-Up-Trailer Lamps
32 Trailer

Additionally I have removed the radio circuit fuse the NAV unit took a dump and created a major drain 3.3amps on battery I could reinstall the fuse since radio unit is removed maybe the taillights go though the radio circuit.
Thanks for any helpful advice



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