BLUETOOTH Car Phone Connector Assignment, Through 10/31/2008

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2016 Audi S4, 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi S4, and 2015 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Telephone Transceiver R36 - Bluetooth Car Telephone, Harness Connectors

Courtesy of AUDI OF AMERICA, LLC

A -

Bluetooth Antenna -R152- Connection

B -

MOST bus

C -

54-Pin Connector -T54a-

D -

GSM Connection from Radio, Telephone, Navigation System Antenna -R52-

NOTE:

Unlisted connector terminals are not assigned.

Fig 2: 2 - MOST Bus

Courtesy of AUDI OF AMERICA, LLC

Input
Output

Fig 3: B - 54-Pin Connector (T54a)

Courtesy of AUDI OF AMERICA, LLC

1 -

Terminal 30

2 -

Terminal 31

3 -

Switch-on signal from Telephone Baseplate -R126-

10 -

Terminal 31, ground shielding

11 -

Microphone input (+) from Microphone Unit In Front Roof Module -R164- (Telephone Microphone -R38-)

12 -

Microphone input (-) from Microphone Unit In Front Roof Module -R164- (Telephone Microphone -R38-)

14 -

Ring-break Diagnostic Cable