I am using a Drok buck converter from Amazon. DROK DC Buck Converter:
It works great, and no noise. I set it at 11.9 volts and just leave it there. I put anderson powerpole connectors on each side input and output: https://www.amazon.com/dp/B0CNZ1V5CL?ref=ppx_pop_mob_ap_share
I predict you will like this solution.
73
Braden Glett KD8ZM?