I bought it on amazon for $22 and paired it with a 120 amp relay. Also from amazon, $12. I mounted it on the air box with Velcro so it can be pulled off to service the filter. You can find videos on YouTube, just look up secondary fuse box on Teryx.
I haven't had any issues, but I don't run everything at once either. I only use the rock lights when we stop for a beverage to make sure we don't step on any rattlers. I'll let you know after this weekend, I'll push it harder.