What do you have for front and rear windows, if you have em. I have a half front and no rear on one of mine have the steering column holes taped shut, that in itself will make a big difference. On my other rig, I have a half windshield up front and a full window in the back, vented speed roof and taped up steering column, very little heat and dust in that rig. Also like above post said, you got stuck by a bad dealer to begin with.How do you remedy the heat and dust??