UP FOR AUCTION IS A VINTAGE ALPINE 7374 CAR AUDIO WITH 3310 7 BAND EQUALIZER AND 3528 BRIDGEABLE 4 CHANNEL AMPLIFIER. THIS IS A VERY HIGH END SYSTEM FROM THE MID 80'S THAT WERE INSTALLED IN LAMBORGHINIS. THIS HAS BEEN TESTED AND DOES WORK. ONLY ISSUES I NOTICED WERE THE PLAY PROGRAM AND TAPE PAUSE BUTTONS DO NOT LIGHT UP. MOST LIKELY NEED NEW BULBS. ALL LIGHTS WORK ON EQUALIZER. VERY VERY RARE SYSTEM. GOOD LUCK.