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Car DSP for Volvo XC60 rear subwoofer 8-way output power amplifier surround speaker audio modification original installation - AliExpress
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Sharing audio upgrade on my non-DSP in '99 528iT. Kept OEM headunit/cassette (for looks mostly). Replaced stock speakers with Bavsounds & replaced OEM CD changer with GROM bluetooth which punches above its
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