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Amp install in 99 A4 Avant - where do you come through firewall to hook up to the battery?

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Old Feb 10, 2002 | 06:49 PM
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Default Amp install in 99 A4 Avant - where do you come through firewall to hook up to the battery?
I looked from inside the engine compartment - can't see much - will be installing stereo this week and would like some help on this one. Thanks!
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Old Feb 10, 2002 | 06:59 PM
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Default You should be able to route through the ECU box and the 'spare' rubber grommet on it. Just above the
ECU wire bundle that goes thru the plenum wall into the engine compartment.
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Old Feb 11, 2002 | 05:21 AM
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Thanks! I'll look for that tonight
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