Part Number : BA4918
Function :SIP-M12 / Vcc: 36V
Manufacturer : Unspecified
Pinout : 
Description
Reference site :
http://regi.hqelektronika.hu/info/hu/ba4918.html
http://tinypic.com/view.php?pic=205bkm9&s=6#.U7YJN53lKUk
http://monitor.net.ru/forum/pioneer-deh-p3950mp-info-397713.html
Datasheet PDF Download
Other datasheets in the file : BA4918, BA4918-V12