I have LED lights wired from my stock 6.5 inch subs in my car. Though they do pulse with the bass of any song, the song must be turned up very loud for the lights to be noticeable. I know that I can wire a small amplifier in the line running from the subs to the LED's but I don't know what amplifier I could use. I can't find any that would be reasonably small enough. Any advice?