Volvo 440. Philips VC602 Radio?

hi there i am trying to put my code into my castette Volvo 440. Philips VC602 Radio? when i try to follow the instructions as on this website nothing happens i have just bought this van dont know how many times the code has been tryed does this matter thanks

david stokoe
November 2010

Code Entry as Follows:
Switch Radio On - Display Shows
" Cod "
Press Preset 1 and a " - " will appear
Press Tuning Up " ^ " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up " ^ " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up " ^ " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up " ^ " For Correct Digit
If the correct code number is now shown
Press Preset " 1 " to Enter

Brian
April 2008