I know exactly what you are looking for. We have two switches, one in white one in black, that will do just what you are asking. These switches also have a dimmer feature which you don't have to use. They are the,
RV LED Light Side-Slide Dimmer Switch - White item # 37205-12325
RV LED Light Side-Slide Dimmer Switch - Black item # 37205-12315
I have attached a diagram and a review video. view full answer...
To install the # C49UR Curt Assure brake controller in a 2021 Chevy Silverado, in addition to the controller you'll also need a # C51525 brake controller wiring harness. The harness plugs in to the connector located under the dash just left of the steering column next to the e-brake pedal as shown in the provided photo.
I've linked to a demonstration video showing how the brake controller works. view full answer...