Re looking for a "world radio" that will fit in the dash.  Recommend you do
the www thing, looking for amateur/ham radio receivers for motor vehicles.
ICOM makes a dash mounted SSB transceiver that fits fine, but you will need
an amateur radio license (very easy to obtain these days in that Morse Code
(CW) is no longer required for the first level license.  Your local amateur
radio/ham radio club probably offers free lessons which just about guarantee
you will pass the entry level exam which can get you on the air transmitting
world wide and receiving on all the licensed bands from around the globe and
via satellite if that is your fancy.

Kenwood and YAESU also make a mobile rigs that might fit the dash.  But, I'm
used to my ICOM 706 ... takes up only a little room, the tuner that you can
purchase separately allows you to use one antenna for all bands.... etc ...

There are probably amateur radio licensees in your home region and community
who would be willing and helpful in your quest for the right rig.

SamC
Amateur Radio License N1PDL

Good hunting ...