Additional thoughts:
- could the errors I get with 2URAD module come from an issue with my DATEN version?
- how do you check which version of DATEN you have?
I was surprised not to be able to do a manual read of the 2URAD, however if I look at the large FSW_PSW.TRC (the one you get after selecting the chassis, CAS then hit Back) it looks like the content of 2URAD is within this file.
So I had the curiosity to compare my latest large FSW_PSW.TRC with the one I backed up before writing $676 to the VO.
And the result gets me completely baffled
Attached below a file that contains the latest values, I copied all the lines where the values were reported different. Note: it may be across different modules, since it spans the whole file and I don't know where 2URAD starts and stops.
Basically in many places where it used to say "stereo" it now says "hifi"!!
Which would mean that it actually worked?!?!
As stupid as I am, because I kept seeing Stereo in the secret menu I didn't even turn on the radio to see if I could hear a difference