What is needed to install a new radio in a 1994 Dodge Spirit and is there a installation kit?
To install a radio you need a wiring harness for a 1994 Dodge (a Metra 80-1817 from Circuit City is what I used), and an installation kit (make sure it fits a 1994 Dodge Spirit). You'll probably need to splice the wires from the wiring harness to the stereo harness unless you can get find the right kind of connection somewhere.
Dodge spirit and Plymouth Acclaims use 5 1/4" speakers in front and rear doors. The covers pry off if done gently. The have plastic tabs holding them on. They get brittle so be careful. Just unscrew and install new speakers and snap on the covers. They sell kits a Walmart and other stores if needed for the speakers. I'm getting ready to replace the door speakers in my 94 Dodge Spirit.