My Double wide trailor has a two wire system going to the thermostat red and white wire what do I need to do in order to make it work on a programmable thermostat. I beleve I need a jumper to Rc/Rh but I don't know where the white wire needs to be

There should be a screw labeled "W" for the white wire. And like you said, the red wire goes to jumpered Rc/Rh.

Hope this helps,
WallyH