Ich glaub ich hab's raus:

http://www.asrr.org/attachments/192_..._Accessory.pdf

PIN 10:
Ignition Detect Connecting this line to the ignition line of the vehicle will automatically turn the radio on when the ignition of the vehicle is turned on.

d.h. 12V auf den Pin 10 und gut is ?

Gruß, Spee