Bimmerfest - BMW Forums - View Single Post - replace facotry amp or add another amp?
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Old 02-25-2013, 03:00 PM
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joyism5 joyism5 is offline
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Location: USA
Join Date: Jan 2011
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Mein Auto: '99 740IL, K75RT
Factory amp is a must, if not your audio system will not work at all. This includes your radio unit. Speakers might work but depends on impedance of the speakers.
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