NoPistons -Mazda Rx7 & Rx8 Rotary Forum - need help with my 1990 gxl headlights and stereo

i’ve linked some videos i took that will help explain my issues. my headlights are working but must be manually propped on in order to work (i’ve been told it’s either the switch itself or a relay somewhere? idk if that’s true). and then my stereo keeps cutting out both on radio and cassette and the digital equalizer won’t turn on. the stereo just started acting up recently until now it has been working fine. any help would be immensely appreciated.

thanks!

videos: