The model is a 1998 Cardinal. The stereo isn't like a car stereo. It's more like a shelf stereo that is mounted in a little cubby hole. I will post pictures when I get back home, but here is a pic to give you a better idea of the stereo. It's the speakers on the stereo that are bad, not the speakers throughout the camper, which is why I want to replace the stereo. The stereo plays through its own speakers and the camper speakers which can be controlled separately. Hope this gives more context.
https://www.bing.com/images/search?q=stereo&view=detailv2&&id=379C9E2AF9A73E41C6D51FF170857793BA4D78DE&selectedIndex=0&ccid=uVKkt9iU&simid=608050779040189673&thid=OIP.Mb952a4b7d89498aa82db66e983a96172o0&ajaxhist=0