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There is a third option:
- code your OEM HU to HiFi (Professional Radio-only). Can be done remotely by forum vendor BimmerTech.
- Stereo 4/6 harness with RCA outputs
- JL Audio XD600/6
- DLS R4 front component set
- DLS 224 rear coaxial set
- SWS-8Xi underseat woofers
No center speaker required.
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