Quote Originally Posted by nubcake View Post
My idea is that it might be convenience module, which is conveniently located below waterline and is prone to water ingress & corrosion.
Whether it's responsible for interior lighting - I'm not sure, but definitely sounds possible. All the issues with lock, radio etc - also hint at that.
Yes, possibly. I'll take a look at the bentley wire diagram for that info.

Thank you,

Mike