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      01-16-2013, 07:53 PM   #3
boogysbmw
I love my X3
 
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Drives: 2013 BMW X3 28i
Join Date: Nov 2012
Location: Suffolk County, NY

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2013 BMW X3 28i  [0.00]
I did it myself. The amp is a Alpine PDX-M12 and that cost me $500. The sub is Alpine Type R 12D4 that cost me $175. Box ran me like $30. So roughly $700.

I used the left and right underseat subwoofer wires for the signal to the amp. I used the power antenna wire for a remote turn on switch. Every thing is right in the trunk so installation was quick, easy, and painless
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2013 X3 28i Alpine White/ Black Nevada Leather/premium pkg/convenience/sport/DHP/Cold weather 1/Premium sound/Parking sensors/Alpine PDX-M12 AMP powering one Alpine SWR 12D4
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