Radio Help

This has annoyed me for the longest time ever. So my security went off. And it was honking And stuff, so I locked And unlocked the car. Yet that didn't help. I was driving with a screwdriver at hand to change to park and drive and reverse until I wedged something into it to make it change without the screwdriver. And My radio stopped working. I've tried the hood latch sensor as best as I could. And stuff like that. I want to avoid the dealer at all costs because that's too expensive.

Edit:it stopped honking