To avoid needing the code in the future, use a memory saver while changing your car battery.
Press and hold one of the number keys (1 through 6) for three seconds. blaupunkt gmbh 815 manual
Many 815-coded units featured anti-theft protection. If power is disconnected, the radio will lock up, requiring a specific key-sequence matrix detailed only in the user guide. To avoid needing the code in the future,
: Check the first or last pages of your original vehicle or radio manual; sometimes codes are handwritten there by previous owners. the radio will lock up