1997 Dodge Caravan Electrical trouble.

Hi Kitty
and thank you
the air bag ,cruise and horn all related to failed clock spring inside the steering wheel under the driver side air bag
have your VIN # on hand and check with your local Chry dealer if its still covered under the recall that was issued few years back
as for the radio
if all fuses checked OK radio need to be pulled out and checked (suspecting a bad radio )
dome lights and lock and unlock door bell all related to a door switch
check and clean the connectors on the sliding door s
Auto zone hand help OBDII reader will not communicate with BCM and AIR BAG system
you need to have it scanned by a shop where the proper scan tool used and it should indicate what door switch is staying open and the reason for the air bag light on
good luck