What is the meaning of 7 SAFE on a Blaupunkt car 300 radio?

"7 SAFE" on a Blaupunkt car 300 radio indicates that the radio is in anti-theft mode. This means that the radio has been locked and can only be used with the correct security code.

To unlock the radio, you will need to enter the correct security code. The security code is a 4-digit number that is unique to your radio. If you do not know the security code, you can contact Blaupunkt customer service for assistance.

Once you have entered the correct security code, the radio will be unlocked and you will be able to use it normally.