I have recently updated my head unit from a MFD2 to a RNS510 version P and works fine apart from when I hold down the up button on the MFSW where it used to fast forward a track previously, it now goes into the menu where you can see MPG etc on the high line.
I have the old style buttons and the car came with MFSW from the factory. I can still skip tracks fine but can't fast forward or rewind.
Any idea why now I can't fast forward?? I have seen it work fine on a RCD510 and MFSW with high line. Is it a limitation of the RNS510?
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