Aftermarket Stereo Problem

Hi guys I'm new here. I have a question, today I bought a new stereo for my girlfriend's car a 94' celica gt I had the guys at Circuit City install thinking they knew what they were doing more than I did. Well they get finished and everything is great... for the time being... soon we noticed that they didn't replace part of the dashboard correctly, then that in-dash clock wasn't working. Well a few hours later, we notices that her motorized antenna isn't coming up, then tonight she noticed also that her interior lights weren't coming on. I'm not a car wiz however, I can tell that they didn't do something right. Any ideas? We're going back tomorrow to complain, however I don't want to have them get back into it if they screwed it up this bad. Any help would be great. Thanks guys.

So for the record:
Interior lights do not work, dashboard, or dome
Dashboard clock does not work
Antenna does not come up

however all the other interior electronics work, (the new radio does just fine)

sounds like they had no idea wat they did they probably fucked up the harness but the interior lights that weird and the antena if u hear the motor theb its just the cable but if u dont they forgot to conect the "power antena wire"

It was a fuse.