As an X farm kid. Everything I own gets converted to round 6 or 7. Break controller will be same wireless unit as my father uses on his Alto single axel camper. It plugs into 12v lighter. Easy to swap to other vehicles. Surge breaks would be equally decent but probably not as a retrofit.I've never towed a single axle trailer that has brakes on it. I've never seen a single axle trailer with brakes either. All of the trailers that I'm talking about are equipment or landscape trailers. A trailer with brakes takes a 7 pin plug and the vehicle should have a brake controller vs a 5 way trailer plug on a trailer without brakes. I've never seen a FWD vehicle equipped with a 7 way trailer plug. I've seen older half ton trucks and compact trucks that didn't have them either. Maybe they are making camping trailers with surge brakes ?