Where can I get 12v trigger for trailer brake controller?
 

I'm adding a trailer brake controller to my new to me, 2008 LR2. I need a 12V trigger when the brake pedal is depressed.<br />The switch at the brake pedal seemed to be a likely candidate, but it doesn't turn on the break lights. I suspect some CAN bus controller is using it to verify my foot's on the brake pedal before it let's me start the engine. I'm thinking the brake light switch is under the hood somewhere.<br />I'm not using the Land Rover trailer wiring module for the trailer lights. I'm using a splice in Tekonsha module from etrailer. It's working well and isn't interfering with the LR2's CAN bus modules (at least so far).<br />Is there anyone out there who's tried this? I'd like to avoid buying the Land Rover module if there's anyway around it. I'm assuming there some sort of brake controller integrated in their module.<br />Any help or hints would be greatly appreciated.
Image added by mistake. I can't find a way to make it go away.