Strange lighting issue ? Only since RNS-E install
 

Both the instrument needles and the scales used to light with ignition on.
Now only the needles light with ignition ?

If door is opened, or interior light turned on, the scales light up ?
Door shuts, scales off ?

Once the headlights are turned on everything lights normally ?

Also noticed that the timed exterior courtesy lights (fogs and brake) work in any mode ?
They are only supposed to work in Auto light mode ?

Vag coding is correct at:
STG 56/7 = 0301131
STG 17/10/62 = 21
STG 17/10/19 = 31000
If I recode to 21000, the scales alone will then light as they should.
Set to 31000, scales fade away ?
Weird

Flashed RNS-E by the way in an 05 S4
Thanks

Where did you route the GPS antenna? Did you remove Instr. Cluster to do so?
 

Did you revag the car besides value 21 in Channel 62? Do you operate any other hardware taped into Can-Bus? Let me know so we can try to troubleshoot this a bit. First I have ever heard of this happening. Almost sounds like short in a wire.

I think it's now fixed >>
 

Here's the deal
I just took apart the kick panel, fuse cover and instr. cluster (did not
unhook cluster cables)
I looked around, checked connectors, I moved the Navi antenna further
forward and away from the cluster as far as possible.
I also noticed that my V1 radar detector power pac was resting against the
Light switch assembly just next to the fuse box.
I relocated that also and now everything looks normal :)
Needles and scales light with key on.
So I don't really know what fixed it but I think it could have been either
of the two things maybe causing an RF interference of some kind ?
I am not a rocket scientist though.

I hope it stays this way and that the other weird things are gone also.

Thanks for your help