Will Modification Void My Warranty? Shawn March 12, 2019 18:42 Work performed by qualified technicians that did not cause any damage to the radio will not void the warranty. Related articles Can I Purchase Direct? Channel selector sometimes skips and doesn't feel as firm as I expected How many amps does the SR-955HPC radio draw? SR-655HPC Setup Guide How to use CTCSS with the SR-955HPC Comments 0 comments Article is closed for comments.