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| Message: | A replacement CD changer is required for an '00 E39 equipped with the Business Radio and DSP. (The changer must have the 3-pin and SPDIF coax cable connectors to be compatible with the other existing OEM components.) An updated BMW MP3-capable changer was purchased, but this uses 3-pin and 6-pin cable connectors. It is incompatible with the '00 DSP components. The OEM changer appears to have an AI-Bus. The updated changer appears to have an I-Bus Do any Roadfly members have knowledge about AI & I-Bus protocols and whether the internal drive/changer mechanisim from the I-Bus changer could be swapped into the AI-Bus changer's case. ![]() | ||||