Could it just be a fuse?

I test drove a car and am trying to decide on whether to buy it or not. The defrost,heat,ac,radio is not working. I was told by the seller it be simple fix just needs a fuse. I was skeptical because if its such a simple fix why do they not have it fixed. I don't know about buying a car with no defrost especially. COULD this be a fuse? Please Help.
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If nothing else, get it checked by your own mechanic before buying - the $100 pre-inspection fee would be cheap insurance.
" It's probably something simple like a loose wire"
" Oh, the A/C probably just needs a charge"
" I never noticed that (severe) wobble in the suspension you are talking about"
The trouble is if it actually WAS something simple the seller should/would have taken care of it.
The dealer has to assume it's the worst thing possible and deduct accordingly not to get burned.
Another trick was to disconnect the car's battery for a few seconds so the check engine or airbag light would go off. Doing this would usually buy enough time to keep the light off before the car got appraised.
Discovering a check engine light on the following day was something that would happen once in awhile.
Listen to the others. Get an inspection done! I'm betting it's a lot more than a fuse!