How may I retune my Philips 400 Car Radio/Cassette?

HI,
In reply to your question, turn on the ignition don't start the car, press in AS button and the on Radio button together, then you should see save and then a number, now press 1on your radio to add your first number of your code,then press2 on the Radio add your second number do the same with buttons 3 and 4 now press the AS button again till you hear a bleep job done
Good Luck
Adder
I can send you a copy of my book if that helps you will have to give me your address

Bill Heeps
October 2007