't is gewoon 'n Becker van de 6600 serie - 12 geeft aan dat'ie "ontworpen" is voor Porsche
It's very interesting that the CDR 23 radio is essentially identical in function, front face appearance, rear plug in configuration etc. to the Chrysler Crossfire radio also made by Becker. Ik lees alleen net het volgende : The CRD-23 requires a CAN-BUS signal for ignition and illumination controll.
The CRD-23 does not have a user input unlock code, it has a protect mode. If the unit is installed in an application that does not match the VIN # of the previous install, a Porsche dealer of Harman Becker service will have to recode it through the MOST-BUS system ....
The CDR-23 and the MOST thing started in 2003. 
