Yes you can ! This mod will let you reverse polarity on your set with no risks at all. Even more, it’ll work as if nothing had happened. I’m sure some of you are going to bet with their friends. I did
PROTECT YOUR MOBILE RIG FROM POLARITY INVERSIONS
All you need ( is love ) is 4 diodes of the series 1N400x ( 1N4003 for instance). Insert them in the 12,5 V DC line as shown is the drawing. That `s all. Have fun and kick away one of the most frequent problem of troubleshooting in CB.