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Discussion Starter #1
hi all,

I have a W204 (2008) with Audio 20 and purchased the COMAND APS (part number A204 870 38 96) to replace my Audio 20.

My authorised dealer installed the head unit and replaced it without an issue but could not code it.

They indicated that the unit I purchased was a 2009 unit (SCN code 527+809) and the car I have will only accept 2008 units (SCN code 527+808).

I thought it is simply a plug & play and with coding required.

Can anyone help or have any advice? Also know anyone in Melbourne that can help me install this unit?
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