Is there anyone other than Dodge I can buy speakers from?

You can try car audio stores. Not sure of your location, but in RI there are stores like Sound FX, Boomer McLouds, and other stores along those lines. However, they can be expensive, depending on what kind of speakers you want. Walmart also has a car audio section....they dont have the BEST, but their stuff isn't absolutely terrible, and their prices are good. I also know that some flea markets sell cheap car audio stuff. I have actually seen brands like JL audio at the flea market. If none of these places work, I would actually try Ebay. Ebay has TONS of car audio supplies.

walmart k mart any parts store they sell speaker just about every where not hard to find

walmart auto zone can get what you want

Try Wal-Mart.

Every auto store, radio shack or sound store.

pioneer or kole audio