Cerwin Vega 10" Active Underseat Subwoofer With Passive Radiator 200w Rms Speaker Spacers & Grills Maintains Half Amplified Systems 1 9 16in Steel Maintains Half Amplified Systems or use the override Open the drivers door and leave open Turn the ignition ON OFF 3 times siren chirps Press arm button on first remote (siren chirps) Press arm button on second remote (siren chirps) Repeat for any other remotes Wait 10 seconds for learning process to complete To learn new remotes to M80II & M80GII models: 1: Disarm – open driver’s door (Keep door open while programming) LED starts fast flashing 2: Within 10sec turn IGN on the LED will now light solid for 10 seconds 3: Within 10sec Features: Slim 10” 2O Subwoofer Built In Passive Radiator for extended bass response Power: 200W RMS @ 2O @100Hz a simple plug and play operation is achieved