73 Duster 4 speed Reverse Lights Wire Harness Question

Hey gang,

Putting final touches on my 73 Duster before hitting the road. I realized pretty quick that I had no wire harness hanging down running to my back up switch on my trans.

Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists

I found the harness on brewers but they have it listed for 70-72 but I can’t imagine it’s different for 73 but also I could Mopar works in mysterious ways haha. Looking to source photos from you guys where the harness would plug into the bulkhead and maybe some clarification on wire colors to look for as well. Also I would imagine the reverse light indicator next to ash tray ties into that harness as well?

I found a couple threads on here last night but it was guys with early A’s etc hopefully someone with the old service manuals can give me some good intel. Thanks
Kevin