Volvo XC70 P3 Volume Knob Support/Fix

If you can no longer turn your radio on an off in your Volvo XC70 P3, and instead just turn the volume down, here is a way to fix it.
The lovely Volvo designers have created the most overly complex and stupid mechanism for turning the radio on and off. If the button no longer works, and doesn't spring back when pushed, it is most likely the little unsupported tab has broken off.
Alternatively, if you want to support it preventively, you can also do that.

To check:
Using vicegrips with tape on the jaws to prevent them scratching the knob, grip the volume sheath that spins, and carefully pull it off.
Then grab the knob inside and pull it out.
Carefully remove the black cap with the writing on it, its easier if you slightly pry it from the white plastic where the two tabs are, and hopefully you will be left with the complex white plastic internal part.
Make sure to look for the little tab that is broken which might still be left at the back of the centre console.

Print the file, depending on your print quality, you may need to shave/clean up the part, it was designed to be a tight fit, and can be used solely as a friction fit. You may also need to clean up where the tab was, depending on how it snapped off.

To install the support, slide it in from the end that had the black cap. There are 3 grooves, it slides into the only one with the webbing support. This makes sure it will line up with the button on the circuit board. You may need to use a tool to push it in properly, or if it won't go in, trim the two tabs on the circular part. Once a dry fit has been achieved, pull it out, glue it in place, and the install it reversing the steps above.

The part has been designed to provide the most points of friction possible, and I dialled it in over 10 or so iterations. Hopefully, it works first go, but if not, I have provided the 3dm file which should hopefully make it easier to modify (I found increments of 0.5mm, and then 0.25mm were the most useful).

I'm sure there are other, easier ways to fix this issue, but if you still want the button to glow at night, the fix needs to be a slim as possible, hence this design.

Hopefully its of use, the only thing I ask, is that if you have every designed a replacement part for a Volvo, please upload it, it helps every Volvo owner.
Cheers