Alright basicaly the radio and heater decide when they want to work. Some days it works fine then it could be weeks before they come back on. I dont know if it has anything to do with the key but some times the key sticks in the ignition and u have to wait a few minutes to get it out. also when u go somewere for a short time if u put it in park it dont want to come out of park. Any clue whats happening to this old honda.

 

the park issue could be a switch that is activated by break pedal. my girlfriends car does that too. A friend of ours who is a mechanic said if she bought the part he would fix it. we just havent gotten around to doing it. It could also be a switch in the ignition that wont allow it to come out because it thinks the ignition is not in the on position which would also explain the heater/radio. Not sure on the part about the ignition switch but it seems logical to me. I know none of these things will operate if the key is off.

 

Ignition switches fail. The brake switch is a good idea. Radio and heater are probably bad connections.
I would replace the ignition switch, the brake switch, and use a DMM to probe for voltages associated with the radio and heater at the fuse box,