crazy wiring issues??????

hey everyone. i havent been on in a while.
i almost sold my teg. but it broke down so i fixed it and decided to keep it.

since i got the car i had some weird problems. my gas gauge didnt work and neither did my cruise control, also when i turn on the fan it wont turn on and it kills my stereo.

yet last week my car stoped running. i replaced the §§§§§,rotor and cap, also the alternator. for about an hour everything on the blower and radio all worked and i had a fuel gauge.

im hoping you guys can help me out. and fyi i have all stock system except for the deck. and it is wired correctly with a plug in harness.

any thoughs?

Sounds like a grounding issue,

When one circuit, [blower motor] has an effect on another circuit, [radio] it is almost always a grounding issue.

Also check your main acc, fuse, under plastic “clip” upper right side of under dash fuse box, make sure it is mounted tightly. 94