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 What's the best radio for trucking? Can I Purchase Direct? SR-955HPC Setup Guide Channel selector sometimes skips and doesn't feel as firm as I expected What are the dimensions of the 655 & 955? Comments 0 comments Article is closed for comments.