Replacing awful Jensen with a (Ford) nav radio ?

My trailer does not have a shark fin antenna. It is a 2011 model and has a regular automotive type antenna for the radio. I'm pretty sure it will use the standard Motorola type vehicle connector, but if it doesn't I'll get an adapter.

We camp in remote locations. AM and FM reception is highly desired so that we can get in sync with the nearest local community. I've never found an aftermarket radio that had reception as good as the OEM units. I've had several Pioneers and a Kenwood.