99 chev radio lights burned out

are the back lights in the chev radio's of the 1999 era replacable?
this is the type with the tape deck in the factory radio, and the cd
player in the console...
just curious if these are serviceable...

also, should there be lights to light up the button for the A/C (not the
yellow one that indicates when it is on... but a backlight to show where
it is in the dark? (and also the vent/recirculate button backlights))