Reddit reviews Subaru H4510FJ000 Fog Lamp Switch, 1 Pack

Parts List:

• Nilight 32" light bar: $42
  
• 14AWG wiring harness: $14
  
• 1" Mounting clamps: $17
  
• OEM fog lamp switch (#H4510FJ000): ~$40
  
• Assorted wire connectors
  
• Crimping tool
  
• Heat shrink
  
• Silicone sealant
  
  A friend and I did the installation ourselves in about 90 minutes (it definitely helps to have an extra set of hands!). Here are the basic steps we followed (refer to this guide for pictures):
  
  

1. Attach the clamps to the roof basket.
   
2. Mount the light bar to the clamps (I ended up having to buy longer screws than the ones included with the light bar).
   
3. Run wiring harness out from under the hood through the drain hole (I had to slightly enlarge the hole with a drill). Slide heat shrink onto the wiring harness, then connect the harness to the light bar via crimping.
   
4. Attach the wiring harness to the battery. Test the light bar at this point to ensure everything is functioning correctly. Screw down the relay and seal the heat shrink.
   
5. Remove the rubber grommet and run the wiring for the switch through the firewall.
   
6. [Optional] The wiring harness comes with a switch, but I wanted to use an OEM switch. I connected the switch listed above to the spare foglight plug using these instructions.
   
7. Adjust light bar angle, zip tie any loose wiring and secure the wiring harness to the side of the windshield with silicone sealant (in the drainage channel).
   
   Hope this helps!

OEM fog light switch (you'll need to cut out the hole or buy the cover raycv93 mentioned):
https://www.amazon.com/Subaru-H4510FJ000-Fog-Lamp-Switch/dp/B07F92BX3P
https://forums.nasioc.com/forums/showthread.php?t=2816478

If you have a 2015 model specifically, you can use an FR-S/BRZ switch that goes next to the rotary light:
https://86speed.com/foglight-switch-frs-brz-86
https://www.youtube.com/watch?v=P2482ZUpE4E