“no fuse” message in odometer

I have a 2002 Chrysler PT Cruiser Touring that I reversed the battery cables on when putting in a new battery. I saw a puff of smoke come from under the car and now the radio an automatic locks don’t work, but everything else does. My odometer now flashes a “no fuse” message, I checked the fuse in the fuse box for the radio and it is fine. Is there a fuseable link somewhere under the car? What do you think the problem is?