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Discussion Starter #1
Hi there,

I'm getting a W164 ML320 CDI with the NTG 2 COMAND unit (flip-down front) and want to upgrade it to the more recent NTG 2.5 (hard drive) unit. The car does NOT have Harmon Kardon, but does have a rear seat entertainment system (screens behind both front headrests, DVD player under rear seats - not sure if it's an OEM option).

Are there any issues I should be aware of before going ahead with the upgrade, or is it relatively straightforward with the hardware currently fitted to the car?

Many thanks,

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