replacing oem nav.
 

My oem unit has craped oit, well the touchscreen atleast. Would you guys recommend replacing it with an aftermarket unit or repair it for $900?

What unit would you recommend?

There's pros and cons for going either route. If the stock one fit your needs, just find someone selling theirs.

I would never spend $900 to fix a factory radio. You can get a sweet aftermarket nav unit for right around that much. It will sound much much better and work better.