Possible to wire Factory reverse lights to switch?

[rayofsi]

saw this on tacoworld
https://www.tacomaworld.com/threads/factory-reverse-lights-on-a-switch-diy.509314/


Possible to do this?
I have the diodedynamics turn as tail installed, so i have 2 sets of high powered leds..

Wanted to see if anyone knew how to wire this up. in a 5th gen 4runner.

 

[T2000]

Any time reverse lights

So yes there is a way. Here’s the wiring diagram for a 16-19 4runner back up lights. The first picture is of original. The second is of what you would need to add for anytime lights. The lights are controlled by a relay with receives power to its coil from the park/neutral position switch. Basically makes a connection when put in reverse. If you put a switch and you own fuse and power after that switch you could turn the lights on whenever and not mess with the park neutral position switch. As long as you add a wire to the wire through a splice and don’t just directly add a switch in the wire. The relay coil in the picture receives power from the ignition when in reverse. The switch side of the relay receives power from the battery. You want to add your own power source to turn on the relay. Not a direct power to the lights. Allow the same power to continue to power the lights. Here’s the EWD’s you will need and where the wire I would splice is located. PM me if you need any help. I’m sure there’s other people that have done this as well.

 

[Anand]

So, if I'm reading this correctly, the red wire to tap is coming out of the Park/Neutral switch (B42?). The diagram shows where B48 is, but what is the location of B42 (or wherever the wire is to tap)