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  1. 2008 E90 325i Use sub-out on Alpine or 3 way cross-over?

    Car Audio, ICE, Car Alarms, Mobile Phones, I-Drive
    Guys, I've recently has some kit installed into my E90 convertible and need some advise on the speaker wiring (before I make a prat of myself with the installers... :-) The audio bits are Alpine IVA-D106R headunit, Alpine 4-channel amp (not sure model but cheap end of range) and Hertz 3-way...
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