No HEAT or A/C and Radio will not stay off
I have to say, that’s a combination of car symptoms I’ve never heard before … lol … Suggest to start with a basic battery/charging system test. If you know how to work a DVM, a diy’er version:
Before first start of the day the battery should measure about 12.6 volts; then immediately after starting the engine, 13.5 - 15.5 volts.
Probably need some more info here…
Is there any air movement through the vents from the blower motor?? at any speed??
The Heat and AC are 2 completely different systems joined by a blend door and controlled by the HVAC head unit that may or may not have a computer involved… So we need to know if the fan is blowing or not…
When you say the Radio doesn’t turn off, are you meaning with the ignition off the radio still plays or you just can’t turn it off at the radio controls??
Did this all happen at the same time or over time???