The sound is in mono, not like cd/radio/tape (which is stereo), if you don't like the mono sound, then you need to get a stereo input lead, these are very expensive, have a look over on ToysInYourCar.com - Home

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.