Yes you can install it but it takes a long time. I hate messing with electrical stuff myself, but if you're up to it, then you should be able to do it.
Basically it involves buying a harness. I bought mine from www.jeepsareus.com
You splice the wires into your main wiring harness (or whatever it is called) below your steering wheel.
Mine is only partially done. It works, but asthetically it isn't perfect. For example, my wiper/washer works just fine but the button doesn't light up in the dark nor does the orange light come on. I was in a rush (you have to take the dash apart) so I called it good and went on to other things.