Car Stereos MB Quart

Easily manage and control your 12V accessories with the MB Quart GMR-RB4 4-Circuit 20 Amp Relay Bank, designed for seamless integration and simple setup. Built for use with the GMR7V1 Source Unit (sold separately), this relay bank delivers powerful plug-and-play capability, giving users full digital control of up to four separate 12V circuits. Ideal for marine, off-road, or custom vehicle applications, the GMR-RB4 offers a reliable and professional-grade solution for powering lights, pumps, fans, or any other 12V accessory with ease.Installation is straightforward with a simple three-wire connection. Just plug the included male JST connector into the GMR7V1’s ‘AUX TRIGGER’ port, then provide 12V po…