For use in any amp installation where a remote turn on is needed; For adding a subwoofer & amp to a factory system; Replacement for the Ford(R) antenna remote; 1-sec turn-on delay that eliminates pops; Supplies up to 2A of current with a trigger of as little as .8V DC; Turns on multiple amps or a power antenna; Uses a speaker lead or a low-voltage trigger lead to switch 12V on & off;