This radio can do simplex (radio to radio either mobile like this or a handheld) and repeater operation.
Check out myGMRS.com - GMRS Repeater Directory for a list of WA state repeaters.
Is the pedal commander mounted near your antenna coax? Maybe add a ferrite bead on the pedal commander cable. Where are you pulling power for your CB? What about the ground?
I'm running a quad band amateur radio, 10 meter, 6 meter, 2 meter, 440, and haven't had any electrical issues...
Icom ID-5100a, has an on board SD card slot which can hold a list of repeaters that you can download based on your area. The radio has built in GPS and there is an option to seach nearby repeaters from the SD card info and your current GPS.