Will 8 gauge automotive wire soldered to the regular 12 gauge power cord hurt the radio? Shawn February 26, 2019 18:37 Updated No, it won't hurt the radio. This can help reduce the amount of voltage drop when you transmit. Related articles Why does the radio's meter show less power output than my external watt meter? What gauge wire is the SR-447HPC2 power cord? Hooking up radio to directly to the Battery Tuning Your Antenna for the Lowest SWR How many amps does the SR-955HPC radio draw? Comments 0 comments Article is closed for comments.