7 612 330 547: Ford Travel Pilot.

Help file showing how to use the calculator to work out the original code.

Most of the Ford Travel units with a Blaupunkt Part/Number may be decoded this way.

From the model number 7 612 330 547, take the middle three 330

From the Serial number 3296699 take all seven.

Using the BP calculator enter 330 + 3296699 + Alg-1
This will give a code of 1884