If you have the Ford Chassis. The Sony is installed and the speaker/power wires are connected direct to the HR wiring harness. There is NO Ford Harness. So, the existing Sony HAS its multi wire plug on the back of the radio. So, IF the new radio has an optional adapter harness to connect TO the Sony existing plug, then you can plug and play. I have 42 years working on Motorhomes. I have never seen such a plug. I have to trace out each speaker wire and connect to the new Radio wire harness. Exception is if you have a Ford C Chassis. It will have the Ford OEM harness. Doug