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Home >> Porsche >> 2004 >> Cayenne Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Pcm2/CDR23 - Cd-Radio >> PCM2/CDR23 control module function >> CDR23 control module

CDR23 control module

The CDR23 is installed in the vehicle with and without amplifier (internal).

The CDR23 with amplifier (internal) is used if no external amplifier (BOSE) is installed.

The CDR23 without amplifier (internal) is used if a sound package is installed.

NOTE: If no external amplifier (BOSE) is installed on the CDR23, am LWL bridge must be installed on the LWL bushing (only valid for CDR23 with index < 03).

The CDR23 control module includes the following components: 

Internal: 

CDR23 GW

Internal amplifier (optional, depending on the equipment)

Tuner

Single CD

Controller Area Network (CAN) Comfort

External: 

(Optional) external amplifier (BOSE)

CD changer (CDC), (optional)

PCM2 exchange control module (head unit). 

The PCM2 control unit (head unit) includes the following components: 

Internal: 

PCM2 gateway.

PCM2 Man Machine Interface (MMI).

Internal amplifier (optional, depending on the equipment).

Tuner.

Single CD.

Navigation (optional/insertion).

VOCS (voice control system) (optional/insertion).

Controller Area Network (CAN) Infotainment

MOST switch.

External: 

(Optional) external amplifier (BOSE).

CD changer (CDC), (optional).

Telephone/automatics (optional).

The PCM2 consists of at least two but a maximum of four MOST nodes, (Gateway, MMI and Navigation and VOCS (optional)), which communicate with each other electronically via the MOST. Data is transferred outside of the PCM2 via the optical MOST.