Don’t up the size of the fuse. I would use something that won’t leave you stranded if you were to blow them and not have a spare fuse. (Radio, Heater, etc..). For my LEDs I tied into the trailer running light fuse under the hood so mine would come on when the lights were on. (My leds are mood lighting in the floorboards.) they have a separate switch so I can turn them off if I’m tired of them.