Rattle in the dash

[180cruiser]

I'm trying to find what is rattling to fix it, but have had no success.  Upper right hand corner of the dash has a pretty loud rattle.  I first thought maybe it was the glove box, but itis not.  Anyone else have the problem and found it???
Thanks

[sanmiam]

is it only when the blower for the A/C or heat is on?  I know mine was rattling until I took it out and removed this little plastic piece from the motor (did nothing as far as I could see)  then it was fine.  But I also have an s14, so it may be different.

[180cruiser]

It rattles all the time, not just when the the heater or A/C is on.  Sounds like something loose inside the dash, but I can't find it.