Hello
I want to syncronise mycar headlights with my car speakers music output, what kind of cicruit would so this so that whenever there is a beat there will be a flash, and i do not want this circuit while the engine is off as i dont want to drain my battery, how will i get the ignition to tell the circuit the cars engin is running and how do i get this circuit to work with the music and headlights

Thanks Chris

 

The risk of this being used at a wrong time makes this fall under rule 2:

Forum members must not knowingly provide any information that may adversely affect another member; this includes, but is not restricted to, information that may potentially result in injury, death, damage or destruction of property and possessions. The administration takes this matter seriously and has the right to remove any contentious content and deal with the offending member as it deems is necessary.