Hello, I know its solar related forum, but maybe someone could help me. I'm wiring multiple cameras to one monitor which supports only one video channel and would like some help to confirm that the diagram looks correct.
Requirements:
Could I use diodes in this scenario? It would allow me to use fewer relays. For example, ignition wire and wire from "STEREO" button could be directly connected to 86 pin of RELAY (BUTTON) (RELAY (IGNITION) would be unnecessary). Also, monitor trigger wire could be triggered directly from one of 3 relays "NO" pin (RELAY (TRIGGER) would be unnecessary then).

Requirements:
- Monitor can be turned on either by ignition or by separate button
- If power is received from "REAR BULB POWER", video signal from backup camera (CAMERA 1) should be turned on (even any other camera buttons were turned on)
- At any given time, only 1 camera can receive power
Could I use diodes in this scenario? It would allow me to use fewer relays. For example, ignition wire and wire from "STEREO" button could be directly connected to 86 pin of RELAY (BUTTON) (RELAY (IGNITION) would be unnecessary). Also, monitor trigger wire could be triggered directly from one of 3 relays "NO" pin (RELAY (TRIGGER) would be unnecessary then).
