8You need a multi relay with multi buttons.
Amazon has many of them with two relays and you can switch them from momentary to reverse or latching with just some dip switches.
Set up one latch as in, set up the other as out.
I ordered one from Amazon this last Saturday because it had a 933meter remote range and was 433mhz so I could add an antenna for greater distance. 315 antennas are tougher to find. Four relays, I only needed it for a horn button on the quad in case we lose sight of it while ambling around...so the info is fresh in my head. $16.88
But you're on seperate channels unless you mod the relay to activate another relay.
I think I'd be OK with seperate channels.
And
The four button unit allows you to have a redundant set of buttons.
Delivery was slated for October 30th, so I canceled.
I bought a single with less range due to time frame.
Or
An aftermarket backup camera might fit your need.
Or
One of those $15 back up distance alarms. (one of these is being modified for a project by me. They are surprisingly accurate.
But
I also would rather be standing there to see the stray limb or cable.
Pic as proof.
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