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amplifier trigger?

Discussion in 'In-Car Entertainment' started by j4yvw, Dec 9, 2012.

  1. j4yvw
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    j4yvw New Member

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    How is the amplifier switched on? I have an audi a3 sline 2007 with a chorus head unit with rear amplified.
    I am installing an alpine single din headunit and have fabricated a harness from quadlock to iso. Is the
    amp switched on via can buss as i cannot see a switched output from the chorus wiring diagram other than for the cd
    changer which i don't have? Basically i have two blue wires that need connecting to firstly the remote amp switch and
    the second to power the antenna.
    #1

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