I have installed LED lights in the footwells of mine and a few of my friends' cars. We have all just used a simple on/off switch but I would like it to play to the bass. After reading the reviews on some vibration detectors, Ive scratched that idea out since my system is fairly loud. My amplifier is 1500 Watts so I can't hook them up to it. Te only idea I have come up with is buying a really cheap and weak amplifier from ebay or some place, run an RCA from my sub amp to the little amp, minimize the little amps output power, and run the LEDs to the speaker connections. Will this work? Is there a better way? Please help. Thanks.