Satellite digital audio radio (satellite radio) (SDAR) function - GF82.60-P-3021CWA

MODEL 204.0 with CODE (494) USA version with CODE (536) SIRIUS satellite radio up to Model Year 8 

MODEL 204.0 with CODE (510) Audio 20 with CD changer with CODE (494) USA version with CODE (536) SIRIUS satellite radio up to Model Year 8 

Function requirements 

• Status "circuit 30 ON" or "circuit 15R ON"
• System radio authorized and in working order
• The multifunction antenna (A28/11) operates perfectly

General 

The satellite digital audio radio (SDAR) control unit (N87/5) enables stations to be received from the "Sirius Satellite Radio" provider. The satellite digital audio radio system (satellite radio) (SDAR) is controlled using the radio (A2). The data or displays required for control purposes are issued over the audio/COMAND display (A40/8).

Operating instructions 

The system can be operated over the following components:

• Left multifunction steering wheel button group (S110)
• Group of buttons on right of multifunction steering wheel (S111)
• Control buttons on the radio

Function sequence for satellite digital audio (SDAR) radio 

The SIRIUS satellite radio signal is transmitted 3 times to achieve reception diversity (by 2 satellites and one terrestrial station). The multifunction antenna receives all 3 channels (Sat 1, Sat 2, terrestrial station). The multifunction antenna routes the signals over a coaxial cable to the satellite digital audio radio (SDAR) control unit. The satellite digital audio radio (SDAR) control unit receives and decodes the signals.

Finally the satellite digital audio radio (SDAR) control unit transmits the decoded, digital radio signals over the Media Oriented System Transport (MOST) to the radio and for vehicles with code (810) Sound system to the sound system amplifier control unit (N40/3). Audio output is emitted at the following speakers:

• Left front door speaker (H4/1)
• Right front door speaker (H4/2)
• Left rear door speaker (H4/3)
• Right rear door speaker (H4/4)
• Center instrument panel speaker (H4/27)
• Bass speaker (H4/29)
• Left rear surround speaker (H4/54)
• Right rear surround speaker (H4/57)

For vehicles except code (810) Sound system, data are exchanged over MOST between the satellite digital audio radio (SDAR) control unit and the radio. The audio output is forwarded directly over discrete lines by the radio via the following speakers:

• Left front door speaker
• Right front door speaker
• Left rear door speaker
• Right rear door speaker
• Center instrument panel speaker

Diagnosis 

The radio is the diagnosis gateway for all MOST subscribers. Diagnosis is performed via the diagnostic CAN and the front SAM control unit with fuse and relay module (N10/1) over the interior CAN to the radio using the KW-2000 event log.

	Electrical function diagram for radio	with CODE (810) Sound system	PE82.60-P-2050-99FAD
	Radio control panel component description	A2 with CODE (494) USA version	GF82.60-P-3116CWA
		A2 With code (510) Audio 20 with CD changer	GF82.60-P-3116CWB
	Rear window antenna module, component description	A2/19	GF82.62-P-3131CW
	Satellite radio, component description	N87/5	GF82.85-P-3105CWU
	Front central operating unit, component description	A40/9	GF54.21-P-4500CW
	Cockpit central display, component description	A40/8 Entry	GF54.30-P-6100CW
	Antenna amplifier module, component description	A2/18	GF82.62-P-3003CW
	Rear window antenna component description		GF82.62-P-3123CW
	Telephone and GPS roof antenna component description	A28/11 With code (386) Mobile phone With code (389) Mobile phone preinstallation with universal interface, USA/Canada	GF82.62-P-4119CW
	Audio tuner control unit, component description	N40/3 with CODE (810) Sound system	GF82.62-P-3132CWS
	Speaker system, component description	H4/1, H4/2, H4/3, H4/4, H4/27 Except code (810) Sound system	GF82.62-P-4220CW
		H4/1, H4/2, H4/3, H4/4, H4/27, H4/29, H4/54, H4/57 with CODE (810) Sound system	GF82.62-P-4220CWS
	Sound amplifier microphone component description	B25/6 with CODE (810) Sound system	GF82.62-P-5002CW