Halo headlights and turn signal question

Get with @TrailBeast And ask him to sell you the diodes he sold me for my brake lights
Different scenario, but same principle
These things worm as a one way gate in the wiring, allowing you to send power from 2 different sources to the same light without backfeed
He send me one so my brake lights come on when I engage my linelock (but my linelock does not come on when the brake lights do)
The second one he send me, I installed in the plow truck
I wired some work lights into the backup lights so I could see where I'm going in reverse
I then added a switch on the dash so I can have them on when I want...the diode keeps the back up lights off when the worklights are on through the switch