Rattling under my stero in my car

[MiniKiller]

hey guys I have a small prob maybe u guys could help me with. I've had my car for about a year now, bought it brand new but every once in awhile my car, under the stero will start to rattle. Like I'll go over a bump and here it and it gets louder as I go over a bumpier road. The radio doesnt have to be on either and the rattling will continue even after I've gone over all bumps and returned to a smooth surface. I literally have to smack the side of the stero (the dash part near the cup holders) and it will most of the time stop. I've had 2 guys look at this but both times they couldnt here anything, it figures it stops just long enough for them not to hear it.

any ideas?

thanks

[street essentials]

what i think it is is that it is loose enough so that when u go over a bump it will jump a little. try tighting it if that doesnt work try getting some new speakers.

[MiniKiller]

It's a rattle though, like it sounds like I dunno, its tuff to explain, I dont think its my speakers, nothing else seems bad on them like no other vibrations or anything.

I cant seem to tighten it anyway, I felt around down there and think I came across a screw or sumthing but the space is to small to attempt to tighten it.

[algoesfast]

I'm assuming its a factory radio. If so just take the dash apart and see what it is. Factory radios sit in there pretty tight so I dought that's the problem. But maybe the antenna wire hitting something or the harness itself. If you take the dash apart it should show itself to you. Good luck

[MiniKiller]

All right this may sound pretty retarded to all you car buff's, mind you I never knew anything about cars till I bought mine and I still have a shit-load and then some to learn but....how do I take the dash apart? Is it a long/hard job or quick and easy?

Thank you