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Things you NEED:
Alfa OBD software: amzn.to/2IktN4X
OBDLink MX: amzn.to/2DbxQwg
LEDs In My Headlights: amzn.to/2IktN4X
Modified headlights, or different bulbs than what your truck came with (Led or HID).
If you've swapped your headlights on your Ram truck, you will definitely get a bulb out error message on your dash. This is annoying and potentially hazardous as the lights can be shut off by the truck because it thinks there is a short in the wire. An example of this would be if you have HID's in your low beams, and you're driving along at night and the truck decides to shut off your lights. This is an issue.
You can use resistors, but this is a HUGE PITA. It adds a lot of complexity to the wiring, and the resistors still don't always work. I had 14-16 resistors in my truck. That is a LOT of wasted power.
Now with Alpha OBD we can tell our truck what lights are in the headlights rather than trying to trick it. This is the same thing the dealer would do if you upgraded headlights with them.