Ordered another AINavi extension harness, since I didn't get the first one and it got sent back to China. This time I used a different address. Also checked on my seat order, they are about 3 weeks out. Along with that verified my parts list for making the seats heated and my list looks like this:
seat back heater driv/pass 5GM963557B (x2) - $126.92
seat cushion heater passenger 5GM963555H - includes sensor - $85.27
seat cushion heater driver 5GM963555C - $92.19
air bag connector 4H0972773 - $8.06
driver seat harness 5GM971391R - $117.70
passenger seat harness 5GM971392AC - $117.70
Think I still need rail sensor? idk. I already made cancellers, so I have 2 of those. My seat brackets are the Wedge 2326's. I could not find a picture anywhere of this actual model number, and wondering how high off the floor do they bring the seat bottom? The sliders are the standard Recaro that work with Sportster CS/GT, so I am good there.
Another item on the agenda is how my harness bar is going to work with mounting. Saw a dude on YT cutting up the trim around the seatbelt anchor. Seems sketch but idk. Also need to order harnesses. Looked at Schroth Racing and Takatas. Easy integration is key here and want to leave the OEM belts in, but use the harness when needed. I think Navi pulled this off IIRC.
All of this is coming together this Spring, or sooner depending on shipping times. I have other crap going on as well that relate to matching the seats. Will probably do one big install weekend once all parts are acquired.