Quote:
Originally Posted by Clavurion
So you retrofitting TCU from 2005 E53 into 2003 E39 (M5) and that E39 has nav screen (BM53 radio module) and DSP (Top Hifi audio)?
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Hi,
Yes exactly. the later DSP cars have the TCU connected directly to the amplifier, rather than going through the BM like the earlier ones. Somehow the 09/2002+ E39s followed the same exact wiring schematic as the later E53s. This is why that DSP_PROFILE field in the FSW needs to be correct and mirrored from a late X5.
Thanks!