I believe some cars dont actually have the multi colour LED fibre in them so they are fixed. The ambient variable ones do, but it's always possible that some do and they just fix it so it doesn't change.
For what it's worth here is my ambient multi colour settings in
Obdeleven on an
Ateca you could check them with what you have or anybody else for that matter.
Build codes
185 QQ9 VWGROUP LCP Interior ambient lighting, type 2
Reckon that is the Led strip type above rather than the software programming. That's below.
You probably need the two to get it to work. Different build code and you probably have the single colour light. May also need the infotainment unit VCDS perhaps changed as well to enable the correct menu ?. Probably look at that if the build code tallied and the ambient light unit toggled....
The Arona with the fixed colour has this build code
181 QQ8 VWGROUP LCP Interior ambient lighting, type 1
Anyhow given this is posted on the Leon 4 thread where VCDS is currently locked down not a lot you can do. Browsing the build codes of a foreign Leon 4 I see they still use type 2 so I'd say type 2 is your fancy LED assembly, type 1 is fixed. I don't believe there is latent hardware sitting in there that just needs programming even if you could, but you can't on the Leon 4.
The hardware basically seems to be a fibre strip going into a LED light. Whether the multi colour ones are red green blue with three fibre strips or bonded into one fibre strip pass. Let those that rip their panels out find out
. Studying a parts catalogue may also inform but basically if the build code
QQ8 VWGROUP LCP Interior ambient lighting, type 1 it's fixed
Ditto type 2 it's multicoloured.
The run in code might vary but its the type 1 or 2 that's important.
Build codes you get from Erwin. That's for the exacting buyers that wants to know what car they are getting that doesn't trust the dealer
. A dealer can also give you a copy of the build codes. Studying the build codes against the VIN, the model, the options resolves how the sales blurb gets mapped into the finished product.