Suggestions for a place for inexpensive car audio

Pretty much what the title says. I have a very old (2009) Toyota and none of the speakers nor possibly the ancient radio work anymore. We've been driving around with a bluetooth speaker loose in the car that the phones connect to so we can listen to music. It's not ideal. We still use the car daily, so I thought maybe I could have new speakers installed, and maybe even a head unit. Places like Natural Sound are great, but they'd charge more than a grand for that work, and given the age of the car, I can't justify it. My needs are very, very modest. Are there any places that could hook me up with something that just works? It doesn't need to shake the road; we just want to listen to podcasts.