Towing trailer with brakes

Tekonsha has a solution for this kind of situation. I have used it and it works great, with the exception that using flashers when going slow up a hill will pulse the brakes. It does need a 7-way, but any parts store will have a 4-way to 7-way adapter, and you will need to run a temp charge with to the battery (or even cigarette lighter). The other two wires on the adapter (trailer brake and reverse lights) don't need to be connected.

http://www.etrailer.com/Brake-Controller/Tekonsha/90250.html


http://www.etrailer.com/Wiring/Hopkins/HM47200.html