Navigation/Head Unit

[tomsawyer]

Hey Everyone - I have an 05 4/4i w/ 97k & I'm the original owner. For sometime now I've had issues w/ the navigation/headunit in the truck. for instance, the buttons randomly work, the screen has no color except green, radio shuts on/off randomly, on/off button randomly works. This is all besides the dead pixels on the screen.

Anyway, I read all the dynavin/eonon threads but for some reason I'm thinking to just have the unit repaired. Have any of you used Hi-Tech Electronics in CA?
here's a link - https://hitechserv.com/

Should I go aftermarket? Should I repair? I appreciate all your opinions.

Thanks in advance to all who answer.