I just installed a new brp trailer hitch and wiring harness on a 2011 RTS and we have two trailers both having been wired for my goldwing with amber turn lights and i can not figure out what pins to use for brake lights it seems that the controller does not offer a brake only pin any ideas i do not want to rewire my trailers as i still have to pull them with my goldwing the rts is my wifes and we would like to be able to pull either trailer with either bike

Thanks Al