Changing the Customers Code

In order to change the customer's code perform the following:
1. Unlock the radio
2. Ensure that no customer code is currently stored in the radio.

In order to determine whether a customer code is stored, perform the following actions:
1. Press and hold the pushbuttons 1 and 4 until the display changes.
2. If SEC is displayed, a customer code is stored. Remove the stored code. Refer to the paragraph Removing the Customers Code. If --- is displayed, no code is stored and a new code can be added.