I want to replace the Coby receiver/dvd player that came in our 2008 2900mk (sometimes it works, sometimes not), but all I seem to find are wall-mount or in-dash type units. I just want a free-standing unit like the Coby, but don't really want to buy and install all new speakers. On the Jensen site, all they have are wall-mount. What have you replaced yours with and where did you get it?