Astron Model 2412 Regulated Converter input 24 VDC, output 12 VDC.  9 amps cont. - 12 amps ICS.   Have 12 

Folks, these regulated converter can be used to power AM/FM/CD Players, or other radios on your aircraft, truck, tractor, boat, etc.  Go price one at shop/store!!!   This is a deal!!!!