My '99 Miata radio power/volume push button is not working as well as it
used to.
It feels like the spring that gives the button a distinct in/out feel when
you push it is broken.
It still works, but when I go to change the volume, I have to be extra
careful not to accidentally turn it off.
It's pretty annoying.

I've talked to two different Mazda service man and they gave me conflicting
information.

One says that the power/volume spring is within the radio unit.
This would require the radio to be removed and taken apart. He's not sure
if the spring is accessible at all.

The other service man told me that the button should easily slide off the
shaft, with the spring right there for easy replacement, if a replacement
spring is available - which he doubts. He tried to pull the knob off
without success. He did not force it. Maybe the broken spring is causing
the knob to be stuck on..

Anyone know the truth about my radio? Is there an easy way to replace the
power/volume knob spring?

The radio top right identifier is "1M32". I tried attaching a picture but
my post did not go through.

TIA,
Pat Dreiding
Plano, TX