Hi - just wired up a Hoppy 46255 isolator. Have turn and tail, but no brake. Appears that the brake light on the 08 Kingpin is 9 volt? Does anyone know if or where I could pick up 12 volts on the brake circuit? Thanks!

Pick it up coming off the brake switch, or pin #2 on the ACM connector.

http://amj.dynalias.com/upload/Wolfdog/accesories/HoppyTrailerWiring.jpg