Polaris RZR inline power feed fits 15-21
may fit others, please do your own research.
This is a 4 pin connector that uses 3 wires. If thats what you have on your rig, these will work!
 
First off,this is NOT cheap grade China wire.
I stand behind my work 100% if any issues arise all you have to do is contact me. 
 
 
This adapter plugs inline with your tail light wiring and gives you brake and tail light power to run a whip,licence plate light or any other accessory.
 
Orange- Brake light--This wire will get 12v with Brake applied
Red/yellow--switched power/running light--This wire will get 12v anyime the key is on.
Brown-Ground
 
Directions: 
Unplug harness from tail light. 
Plug stock harness into the adapter.
Plug other end of adapter into your tail light.
Terminals are included for the component you wish to power, they can crimped or soldered on. Soldered is best if you dont have to correct crimper die. Crimp as best you can then solder and it's on there for good!
 
 
These are American made in a small town in Texas with my own 2 hands...Keep it American! Thanks for looking.