S4 Quattro Wagon V8-4.2L (BHF) (2008)
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In bottom of rear doors
14
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Left Rear Midrange Speaker R34 / Right Rear Midrange Speaker R35
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In top of rear doors
15
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Left Front Bass Speaker R21 / Right Front Bass Speaker R23
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In bottom of front doors
16
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Left Front Midrange Speaker R26 / Right Front Midrange Speaker R27
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In top of front doors