There seem to be lots of units available on ebay and the prices vary from £180 up to about £400.

They all look exactly the same.

Does anyone have any experience of them, how they operate and how easy they are to fit?

I dont really want to replace my nice quality knobs and buttons with something that feels cheap.

But like the idea of the upgraded look.

Thanks in advance.

I have done mine for one of the later units.
No cd slot as I don’t use it but yes it’s fine.
There are better units with a dedicated hazard warning button but mine works with a press of the volume knob.

Click image to enlarge