B0803-03804-CL UTV Chase Light Bar

I need the wiring diagram for the rocker switch.

Please check the below photo.

What fuse can I put in?

If you want to use a fuse, you could use a 10A fuse and connect it to the “+” wiring.

What positions do the 6 wires supposed to be on the switch? How to connect them?

1.To power this chase light bar, connect the Red Wire 12V(+) to the Positive pole of the battery. Connect the Black Wire(-) to the Negative post of the battery. Red for brake signal, brown and blue for turn signals, and white for reverse signal. Here is a wiring diagram for your reference.
2. The Red Running Light will always be on when the chase light bar is power-on.
3.Brake&Turn Signal functions may require relays to work properly
(Relay is not included due to Universal Fitment).
4. 4 Door Models may require the 3 Pin Extension Cable.
Installation video is included below.