The CDC40 needs both the Code Index and Audio Index & Temperature Index programming for the Radio

ASTRA H - CDC40 - Code Index
DDIVehicle ConfigurationCode Index
0501

0504


Not Relevant022
0505Not Convertible011
Convertible014

ASTRA H - CDC40 - Audio Index
Car TypeCode Index
Hatchback, 4 Doors021
Estate, Van022
Hatchback, 2 doors023

ASTRA H - CDC40 - Temperature Index
Car TypeCode Index
Not Convertible024
Convertible034


How to put the CDC40 into delivery mode

To avoid damage of the internal 6-disk CD changer if you have to post the unit after removal, do the following to put the mechanism into delivery mode.
After ejecting of all CD's press the eject button for at least 8 seconds until a mechanical noise can be heard in the CD drive.