alternator whine

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    Aftermarket Head Unit - Ground Loop Isolator - Subwoofer not working - BOSE

    Hi guys! I have purchased an aftermarket head unit to my Bose system S3. After i installed it, everything worked well (rear speakers, subwoofer), but i had a really annoying alternator whine. So i purchased ground loop isolators, connected them. Now i don't have the alternator whine finally...