Audi Workshop Service and Repair Manuals > A2 > Vehicle electrics | Radio, Telephone and Navigation System, Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Self-diagnosis of pre-fitted components for mobile phone installation | Adaption | Setting of microphone sensitivity

Setting of microphone sensitivity - Adaption channel 131

Microphone sensitivity can be increased or reduced.

Indicated on VAS 5051:

1 -	Enter channel number

–	Use keypad -2- to enter “131” for channel 131 and confirm by touching Q key.

Indicated on VAS 5051:

1 -	Channel 131 reading and testing

5 -	Bar set to current adaption value (e.g.: 3)

0 = 0dB neither reduction nor increase

1 = +1dB increase

2 = +2dB increase

3 = +3dB increase

4 = +4dB increase

5 = +5dB increase

6 = +6dB increase

128 = -1dB reduction

129 = -2dB reduction

130 = -3dB reduction

131 = -4dB reduction

132 = -5dB reduction

133 = -6dB reduction

–	Alter adaption value with bar → Anchor.

–	Alter adaption value by way of direct entry → Anchor.

Display on completion of adaption:

1 -	Channel 131 value X stored

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