This a DIY build for a remote downstream injector box. I forgot to mention that you should add a fuse at the battery with a 15 or 20 amp fuse. Any automotive style fuse holder & fuse will work. The links are below of the parts I used. I would also recommend TruBlu sealant on the hose barbs when installing them into the ball valve. Please like & subscribe to support the channel!!!

Wiring video here:    • DS Remote Box Wiring Explained!  


Switch wiring
Black with to ground on battery
Green wire to positive on battery
Red & Yellow to positive input on remote switch
White wire not used
(I ran a ground wire from the battery to the remote switch and the ground wire from the switch to the same ground on the remote switch)

U.S. Solid Auto Return Ball Valve https://www.amazon.com/gp/product/B06...

On/ Off Switch https://www.amazon.com/gp/product/B07...

12 Volt Remote Switch https://www.amazon.com/gp/product/B08...

1/4 Hose Barbs https://www.amazon.com/gp/product/B08...

Junction Box https://www.homedepot.com/p/Carlon6...

1/4 Hose https://www.homedepot.com/p/Everbilt...