Those are really cool.
I've got the MP3 player speaker accesory that is the 59 Ragtop bug.

I've got an article about it
listed here. (No, I don't sell them.

) But you can get them at Target, Kmart and Amazon.com.
It's really slick! I bought it for my daughter, but I think I might need to buy a 2nd one for me!
Scott Faivre