Scanner laws
In most states there are no laws prohibiting scanner use. In about 10 states having a scanner is only illegal if used in furtherance of a crime. In a handful of states scanner use is illegal, but hams are exempted. In New York state scanner use is illegal and the only exemption they make is for licensed hams to have a receiver capable of receiving
amateur frequencies (I don't know why they need to make that exemption considering that we are already federally licensed to do so)
The FCC has stepped in and preempted state law (P.R. Docket 91-36), but this only exempts ham transceivers capable of wide rx, not scanners.
Now back to the original question…
Uniden makes a remote head
BC-RH96 that is compatable with several of their mobiles.
If you need to receive P25 go with the
BCD996XT
Otherwise get a
BCT15
Both have wide rx coverage (25MHz to 1.3GHz) and should scan everything you want
I know you said no handhelds, but the RH96 head is also compatible with the BCD396T and
BCD396XT
handhelds. You could mount the head in your vehicle, leave the handheld in the glovebox/center console and remove it as needed for potable use/theft deterrence. I personaly went with a BCD396T placed in my truck's cupholder. When i'm not driving it serves as a base (I cant bring myself to spend $400 for a scanner I can only use while driving)