Many people have asked about installing aftermarket gauges in the stock center location. The answer is yes they can, BUT it requires custom work to get them in there. The stock center gauges are not necessarly individual gauges, but they are mounted in a single plastic "pod" using a common flexible circuit sheet and a single harness plug.

While I don't have a walk-through for getting the gauge cluster out, this guide is to simply show you the breakdown of the center cluster pod so you know what you are up against when trying to install aftermarket gauges in the center locations. What is commonly done is replacing the all three center gauges with 3 separate 60mm or 2-5/8" gauges - these don't actually install from behind, but press/squeeze in from the front and the outer trim sits flush against openings in the dash. A trio of 52mm gauges can be custom mounted into the stock pod with modifications. You typically cut out openings in the back of the white casing to fit the gauges in place.