Does anybody have any input regarding putting in an aftermarket COMAND nav system? Does anyone know what the latest COMAND system is? Is it too risky on the electronics to put these things in?

Another question I had was regarding putting in aftermarket zenon lights.

I know I should have asked for these options when I bought my car but I figured I wouldn't need it. I still don't need these things but figured it would be nice to have them.