How to enter a radio code
To enter a car radio code, turn the radio on, use the preset buttons to set each digit, then hold the last preset or press OK to confirm. FreeCarRadioCodes.com sends every code with the exact steps for your make, free in 24 hours or right away for $5.
On most radios the method is the same. Turn the unit on and you'll see CODE, or four dashes.
Preset 1 changes the first digit, preset 2 the second, and so on. Press each button until the right number shows.
When all four are right, hold the last preset, or press OK or the volume knob, for a couple of seconds to confirm. If the screen says LOCKED, WAIT or SAFE, the radio has had too many wrong tries and has gone into a timeout.
ERR on a Honda means the same thing. You don't need to do anything except leave the radio switched on and wait.
Most units unlock the keypad again after 30 to 60 minutes. Some add an hour for every wrong try, and a few count in tens of tries before they lock for good, so go slowly.
Whatever you do, don't disconnect the battery to reset it. That doesn't clear the count on modern radios, and it can make the wait longer.