Schematic Diagram Car

install speaker in the car?
actually i have a altec lansing speaker model ATP3, n i rarely use it, so i tought that it will be so useful if i install the speaker into my car…my quetion is, how to change the input power source from 3 pin 24V ac plug and use the power source from car battery that just only 12v. an if u guys have a Schematic Diagram it will be so helpful..
Don’t waist your time Won’t sound any better so why bother ?…… If you really must you will need an ac-dc power inveter
Arturo Triadic Coil & Charger