ESN (Key CD) security operating procedure
[PWR] button
[FM・AM] button Button [1]
•If there is a problem with the inserted CD, an [ERR] message will appear for two seconds and the CD will be ejected. Reinsert the ejected CD.
•If a CD causes the [ERR] message to appear twice in a row, a [CHANGE] message will appear for two seconds. Try another CD.
•The Security indicator will flash whenever the vehicle’s ignition is switched off.
How to cancel the Key CD
1.Turn the vehicle’s ignition on. Press the [PWR] button or [FM• AM] button to activate the tuner mode.
The tuner is now turned on.
2.Press and hold button [1], then the [FM• AM] button, and hold both for more than one second.
A [SEC] message appears, then in two seconds it will change to [DISC].
The 54420 is now ready to accept your Key CD in the CD slot.
3.Insert your Key CD into the slot.
A [CANCEL] message appears, the Key CD is ejected, then the tuner mode is activated.
The Key CD is cancelled.
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