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Radio, Stereo, and Compact Disc: Description and Operation



Audio and Communication

Base Equipment Cayenne S

The CDR 23 radio, first installed in the model year 2003 Boxster is standard equipment in the Cayenne S, along with 10 loudspeakers. The speakers are arranged as follows:
- Two tweeters in the instrument panel
- A midrange and woofer speaker in each of the front and rear doors

The base version with an integrated 4 x 18 watt amplifier provides very good sound to all passengers.

Additionally, radio information such as station calls letters, CD titles, etc. can\be displayed in the multifunction display, just as in the sports cars (starting model year '03).

A detailed functional overview of the CDR 23 radio is found in the Technical Manual "Service Information Boxster Model Year'03".










CDC-4 CD Changer
(ID-Number for all models; CD changer preparation V-number in USA)

In addition to the standard CDR 23 radio, the Cayenne can he equipped with a 6-disk CDC-4 CD changer. To save space, the CD changer is built into the right side stowage area of the luggage compartment. The self-explanatory menu allows simple operation of the radio.

Additional information can he found in the Technical Manual "Service Information Boxster Model Year '03".

BOSE High End Sound System (digital)
(Optional Cayenne SI Standard Cayenne Turbo / USA Standard Cayenne S and Cayenne Turbo)







This system consists of a digital amplifier (Bose Sound Processing) outputting 250 watts to B channels.

The loudspeakers are located in the instrument panel, the front and rear door panels, and in the B-pillar cladding. Completing the system is an active bass subwoofer located in the spare tire well.

The BOSE High End Sound System offers the following features:

- The Bose Sound Processing (BSP) provides perfect adaptation of the entire sound system to the special acoustic architecture of the Cayenne.
- A special loudness function dynamically adapts the bass range so that the listener does not detect any acoustic difference at low volumes. The system is individually matched to the interior acoustics of the Cayenne and guarantees a balanced and clear tone over the entire frequency range.
- The AudioPilot (TM) (noise compensating volume control) uses a microphone to monitor and automatically control the sound quality and volume depending upon interference such as wind or tire noise, or conversation in the vehicle. This eliminates adjusting the tone.
- The "Active Compression" integrated into the Bose High End Sound System provides precise fine-tuning of the dynamic range of the music. This avoids audible distortions of extremely loud music passages.
- The Neodyn(TM) bass speakers are characterized by a very flat construction. The loudspeaker electromagnet is placed in front of the speaker membrane instead of behind it, as is usually the case.

Detailed information on this function can be found in the Technical Manual "Service Information Boxster Model Year '03".

BOSE High End Sound System (digital)

Technical Specifications


Audio electronics 1 BSP digital amplifier
(1 x TSM switching amplifier* 100 watts and 8 channels 6 x 25 watts)Total rating 250 watts

Number of loudspeakers 14

Instrument panel 1 x 5.7 cm center integrated central broadband (center fill) loudspeaker 2 x 2.5 cm tweeters

Doors 2 x 8.0 cm Neodyn(TM) mid-range front
2 x 20.0 cm Neodyn(TM) bass speakers front
2 x 2.5 cm spherical tweeters rear
2 x 16.5cm deep-mid bass speakers rear

D-pillar 2 x 5.7 cm broadband speakers

Luggage compartment 1 x 13.3cm high-output active subwoofer in a
(in the spare tire well) 20 liter base reflex housing with 100 watts power



* Digital switching technology (BOSE patented TSM switching amplifier) Sound-specific radio functions such as loudness and tone adjustments are integrated into the amplifier. They operate more effectively than usual linear amplifiers and generate less heat.