; BMW X5 (E53) Original radio options - InCarTec

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There are multiple original radio options in the BMW X5 (E53), which option is the original fitted system?

BMW X5 basic radio BMW X5 basic radio
BMW X5 original nav with DSP amplifier BMW X5 original nav with DSP amplifier
BMW X5 original nav with power amplifier BMW X5 original nav with power amplifier
BMW X5 original nav, no amplifier BMW X5 original nav, no amplifier