I had those gauges for 7 months, and they worked fine. Only problem is that there is no readout for the boost gauge and no cutout for the gears (PRND). The gauge actually goes over top of the stock one, but the red does not shine through at all. The gauges come with a seperate control for the green/blue features and the brightness. Not bad for the money. I recently took mine out because I got tired of it. I would give you mine but I ripped it up into several pieces trying to get them out.
You can see the switch you got to use in this shot.