Ive got a Infinity (Factory Mitsubishi)single din am/fm/casette cd controller radio...Ive got the code,but every time I attempt to enter the code it takes it three times,and then goes to "off"..this is evidently normal,as after about 45 minutes it reverts back to code again,and I again have three tries....It seems that I remember that there is another button on the radio you have to push before or after entering the code to get it to "take"...does anyone know the exact procedure to enter the code???

 

enter the codes numbers with the pre-select buttons 1 code number per button (4 numbers-4 buttons) then push the program button the unit will flash then turn on