BOSE - Mazda 6 subwoofer active, how to connect to RCA cable
Mazda 6 Bose (2007-2011) Car Stereo pinout diagram @ pinoutguide.com
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2014-2018* Mazda 3 & Mazda 6 w/BOSE Full System Breakdown/Analysis | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums
SOLVED: I got a bose under seat amplifier from a 2004 - Fixya