how to wire in feed for extra sidelights anyone no

[dazzasgotav8]

not going to be to everyones taste but thats the joys of doing these things , so i am looking to add some extra sidelights to the rear, my logic for wiring them up was into the wiring for the towbar so i fitted the module and connected them up all is working fine apart from it now thinks i have a trailer on and because i only have just the one feed for the sidelights it keeps flagging a warning saying the rest of my trailer lights arent working , my question is is there another way to get a sidelight feed without causing any issues or warnings.