Topic: Auxillary Reverse Lights

[Fowlhunter]

ok, here's a quick drawing. You can use the same power source MAKE SURE IT'S FUSED for both 12v leads depending on where you want to place the relay. Both the relay and the switch are switches. If one is closed (ON) the other open(OFF) then no diodes are needed as the power will only run back to the open switch. Don't turn on the inside switch and then toss the truck in reverse, you'll have power back feeding into itself or both leads sending power to the lights. I don't think that will be an issue if you're using the same power line to feed the switch and the relay as it will still only send the same amount of voltage down the lines (12v). You'll have to ground the lights to the truck somewhere.

*Note* the line feeding the lights from the relay are connected to pin 87. This pix shows a 5pin relay in which pin 87a is normally closed. This is the pin we use in the wigwag drl mod.

Question and don't take this the wrong way because I don't know shit about electrical wiring but from what I've read I need a SPDT switch (on/off/on).  Switched so the lights come on when in reverse, switched off and switched so they can be on whenever I want even going down the road.

[oHIobellboy]

Question and don't take this the wrong way because I don't know shit about electrical wiring but from what I've read I need a SPDT switch (on/off/on).  Switched so the lights come on when in reverse, switched off and switched so they can be on whenever I want even going down the road.

Single pole switch is all you need when utilizing the relay. Consider a relay a remote control switch. The relay will close (switch on) once it gets power from the reverse light feed  allowing the 12v to flow through the relay.  In short, the factory back up lights are flipping the switch (in the relay) whenever they come on.