Which fuse do I use for this radio? Shawn December 21, 2016 22:10 A 15 amp fuse should be used with both the 955 & 655. Related articles What size fuse is recommended for the inline holder? Why does the radio's meter show less power output than my external watt meter? What are the dimensions of the 655 & 955? Difference between the SR-655HPC & SR-955HPC? Fuse size (amps) for SR-497HPC? Comments 0 comments Article is closed for comments.