[paolo]

Very interesting and cool. One thing I did back when I was in technical college to a friends car, we made light bars flash to the beat of the music. It was pretty neat too and very simple. You can even make some colours go with the Bass (low pass) and the others go with the trebble (high pass) We simply wired them to the + and - terminals on a cheap-o piramid amp he picked up at the fli market. Adjusted one channel for highs, and one for lows, and wired the light bar to the speaker terminals, and adjusted the voltage just enough so that it doesnt surge the light bars, we even put some resisters inlien just in case