Radio not working

Everytime my radio stops working my windows don't work either. Does anyone know what might cause this? I'm not sure if it's a electrical problem or fuse problem. When the radio is on it will just turn off then back on and sometimes stays off for awhile. I don't want to roll my windows down just in case the radio turns off again.

your RAP module is going out most likely, or BCM depending on year

could also be loose power and or ground wires for RAP/BCM -- check those first -- the whole BCM replacement process is a pain and costly

it's a 98

then your BCM is responsible for retained accy. power