I just bought a Civic EX. There is an aftermarket radio in it and the dome
light doesn't work (you can turn it on with the switch but not by opening
doors), didn't come with a remote either. I am assuming that the previous
owner screwed up the dome light and remote entry by replacing the factory
radio. I want to restore the car so the keyless entry and domelight work,
what are my options? Can I use later model factory radios with my '98? Are
there any wiring tricks when reinstalling a factory radio?

TIA