Manually tune to your favorite station. Once you have a station you want to store in memory, press down and HOLD the button you want this staion to correspond to. Repeat this procedure for all of the available programmable buttons.
Disconnect the battery for 5-10 minutes.
There is nothing to reset except the radio presets and the clock.
Depends on the vehicle you're asking about which you did not list.
Anytime a battery cable is removed from the battery the radio will need to have the clock reset and the radio stations re-programmed. (Helpfull)
It seems like your radio is damaged. You can try to reset the system by taking out the battery, if the radio is in your car.
i have a 94 camry and i need the code to unlock the radio
Well remove the radio and there is a master reset on the radio. But if you just remove the positive terminal from the battery it should reset it. And you don't have to remove the radio to do that
will not turn on with code provided after battery change
Not true. The computer does not have to be reset. You can change it yourself. You may have to enter the radio code if it is a theft deterrent radio but you have to do nothing to the computer.
change the battery ahole
There is nothing to reset except your radio presets and clock. The computer will take care of itself.
Assuming the previous owner hasn't put in a personal code, the default factory reset code is 00000