2002 grand prix gtp prob

hello, i was in the middle of installing a remote start in a 2002 grand prix gtp, i had the power section of the remote starter done and finished. i was under the hood drilling a hole for the hood pin ( usual spot i always put it)  i had the radio in the car on ( also as usual because you can latch the door hinge and not have the beeping withthe door open) 

i was almost through the hole when the radio went dead, just after i finished drilling the hole ( no wires under or touched while i was drilling)  i went in the car and turned the radio back on but the display wasn't comming on. every thing else in the car works (dash lights , radio lights, and so on) only the display lights dont come on to show the time. is there a chance drilling the hole cause some interferance or just coinsadance that the display died while i was working on the car? once i finsihed the car starter, everything worked fine. but still no display (even when started normally) i'm confused on this one..anyone else have the same prob or some insite?

Does the radio or CD player still work even without the display illuminated??  If so, then I'd say you did nothing wrong cause if you had hit a wire then none of it would work.  That would have to be internal.