Hi all! Pop-up and towing newbie here. I'm in Ontario, Canada and just bought a 2003 Bonair trailer that I'm trying to get on the road. Problem is my towing vehicle (2013 Nissan Rogue) has a 4-way flat harness connected and the trailer has a 7-way AND what looks like a 4-way connection but actually has some sort of adapter that has 8 pins?? The configuration is 2 x 4 - it looks like the 4-way but with 4 more connectors beside them). I used a tester on my TV and my 4-way flat works. The seller hooked up the 7-way on the trailer to his truck when we did a set-up and takedown last week and the lights worked fine. But when I try to plug my 4-way vehicle end into the wonky 8-way adapter it doesn't work. I bought a 4-way to 7-way adapter but just haven't installed it yet because I have to ground it and need to buy some screws that are the right size, and now I'm thinking anyways that maybe it is meant to adapt the 7-way on the vehicle end to a 4-way on the trailer end, not the other way around? I've read through some other posts about the 4-way to 7-way and I'm wondering if I'm missing something about this weird 8-way adapter, or if I should get my tv re-wired for the 7-way. I've taken the advice about getting wired for trailer brakes if you have them, and will definitely look into it in the future, I was just hoping to save myself the expense of getting it re-wired if I can for now. Has anyone come across this 8-way wire? Site won't let me upload a pic but configuration is this: @ @ @ @ x o o o <- 4-way flat from my vehicle plugs to this side, it just doesn't do anything x = the metal wire plug of the 4-way flat o = the rubbery light wire posts of the 4-way flat @ = 4 extra rubbery posts??