Here are the
Body, 12 Volt Wiring Diagram and
Body, 12 Volt Wiring Installation diagrams for your coach.
The rear radio harness is shown on page 9 of the Wiring Diagram. At location H-6 on the page you can see the 2-pin connector supplying power (
YEL wire labelled
JC) and ground (
WHT wire labelled
NC). This connects to the connector shown at location B-8 on page 5 of the diagram. Looking at page 5 of the Wiring Installation diagram you can see the wire labelled
JC is connected to the 3rd 12V circuit breaker from the right in the top row, labelled
LAMPS.
The exterior entertainment center harness is shown on page 8 of the Wiring Diagram. At location C-4 on the page you can see the 2-pin connector supplying power (
YEL wire labelled
JA) and ground (
WHT wire labelled
JP). This connects to the connector shown at location B-6 on page 4 of the diagram. Looking at page 5 of the Wiring Installation diagram you can see the
JA is connected to the 2nd 12V circuit breaker from the right in the top row, labelled
MONITOR/TV.
So the two radios are on separate circuit breakers.