A3 Quattro L4-2.0L Turbo (CBFA) (2009)
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SNDREQ - Signal from Telephone Baseplate (R126)
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Ser-Tx (+) to Telephone Baseplate (R126)
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Ser-Tx (-) to Telephone Baseplate (R126)
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Ser-Rx (+) from Telephone Baseplate (R126)
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Ser-Rx (-) from Telephone Baseplate (R126)
