I am wiring up a sound bar in my 2021 800Ex and came across these two wires under the hood.  What are they used for and can I use the one with two wires for my sound bar power? I am also putting in a switch in the for it

Hello, I just purchased my first SXS a 2021 ZForce 800 Ex. I have only had it on one short ride but I love it so far.
I would really like to put a windshield on it, any recommendations.
I also want to install a radio and a street legal kit.
Any help will be appreciated.