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676 HiFi loudspeaker system
Technic Harness: HiFi (676) amp to MS8 or XD600/6 - BMW 3-Series (E90 E92) Forum
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BMW Technic E6x HiFi (676)/Logic7/HK (677) add-a-sub harness/LOC. $50 | BimmerFest BMW Forum
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PUZU PZ Y005 Car DSP Amplifier Plug &Play harness cable for BMW(676) HiFi (2007 2018)| | - AliExpress
MATCH PnP 7-channel amplifer with bluetooth streaming option upgrade for HIFI 676 ADUPKIT676BT
F22 Level Two 3W Sound Package (676) – Musicar Certified Sound
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