I would think there is somewhere, because it shows up on the display when you’re in reverse. First place I would look is at the shifter area to see if there is a switch there, if not, then where the cable enters the transmission.
Why not install a switch for your backup lights, that way you can toss them on in case you need them for other things. (Such as finding a cold on in your cooler out back 😎)
I installed mine on the roll cage with a toggle switch. Pretty easy to install with the help of this forum once I had all the parts. I ran the wires inside the roll cage where I could. I would like to add an electrical
Power Distribution Block under the dash wired directly to the battery so the key does not have to be turned on to run the lights. Sorry if the pics are too big, I'm a rookie.