Rugged Radios Master Power Switch for Mobile Radios and Intercoms The Rugged Radios Master Power Switch streamlines your mobile radio and intercom setup by cutting down on unnecessary wiring. It includes a 26-inch harness that's pre-wired with a rocker switch, allowing both your radio and intercom to connect to a single power source for simplified control. Features: 26 intercom and radio install harness with pre-wired rocker switch Allows you to plug both your radio and intercom into the same power source Main cable length (thick wire): 26 Ignition cable length (blue wire): 18 Compatible with M1, G1, Gmr25, and Rm25R-Wp radios