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Old 08-17-2013, 10:47 AM   #7
Scooby Newbie
Member#: 301364
Join Date: Nov 2011
Location: Columbus, OH
2009 WRX
Lightning Red


This will work on the 09 base stereo, but the radio needs to be turned off to do it, in the video the radio was on. I did notice an improvement using the through mode (loud was already turned on for me). It mostly added more bass, nothing to write home about but a step in the right direction. Thanks for the tip!
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