just looked at the pic in your thread it should be mounted with screws at the top & bottom by the glove box. and clip to the lower dash piece below the steering wheel by the e-brake.
you know where the top of your dash splits to take off the front part. on ours the part of the dash in front of the passenger stays. on the 4runner's that part comes off too. and where the stereo shroud curves around to the glovebox, the 4runner's dash has less of a curve. I bought a stereo shroud from a 4runner to replace my hacked up one, now I have a gap right there where it curves into the glovebox
i think thats a problem mine has also, ill take a pic tmw... if thats wut it is, ima be pissed since it was out of a pickup
i gotta go back and look at mine now, i think mine has that problem also... so ill be better off getting a diff surround? or dash?
if it does what mine does, it could be just the wrong piece. I'm gonna call it a nite... I'll talk to ya later, let me know if you look or find a different dash piece.
Dang no ones around anymore. What time is it in your folks place. Its 10:24pm monday 5/25 as im posting this