You have to interpret this since this is from memory. I believe there are either 2 or 4 7mm under a plate that is between the rubber pocket on top of the dash and the radio bezel. I believe the vents pop out with the clock and there are another set of 7mm at the lower part of the radio bezel, but at any rate the radio bezell pops off. Most of the time there are no amps besides the sub amp and that can be integrated into. But between the avaitors and the navigators ive done, its a little fuzzy.