Just bought a 92 accord with 122,000 miles - runs great - cept yesterday on the dash where it shows doors open - its shows all of them open and sometimes my radio display and lights will just go out and then come back on -

Any ideas on what I should check?

 

Your title says 99 but your post says 92. Anyway, regardless of year, it sounds like an alternator problem. I'm assuming it happens when the car is running. Electrical systems start acting funny when the alternator isn't putting out enough power. Have that checked as well as the battery. Most auto parts stores will do it for you for free.