I ordered a Tekonsha Primus IQ brake controller and I'll be wiring it up in my 2012 Suzuki Vitara which currently has a 4 pin flat connector. The trailer has a 6 pin round connector. Since installing the brake controller in the Vitara will be a big job with lots of routing wires I'm thinking it may make sense to convert to the more standard 7 pin connector and I'm looking for opinions. Would it be worthwhile to do the extra work to go to 7 pin or is 6 pin fine?
By the way I really wanted to get the Autowbrake controller but 4x the cost of the Tekonsha was hard to justify. People who have the Autowbrake seem to really love it.
Newer Scamps use the seventh/center pin for back-up lights. Your older trailer may not have them.
Here's a link to diagrams for usual wiring: https://www.dieselhub.com/towing/trailer-wiring.html
You could probably put a now more common 7 pin plug on your tow vehicle and get an adapter to match your existing trailer plug from etrailer.com.
There are 7 to 6 pin adapters sold and wired in two different ways. If you get the wrong wired adapter it will lock up your brakes when plugged in. Here is a pretty good wiring solution sold on Amazon. I usually wire it in just inside the shell. It also uses the Bargman wiring color code the same as scamp.
Eddie
https://amzn.to/2tKWnqB