Today my touch screen stop responding to touch. It won't allow me to do anything. I reset it holding home and fast forward, cleaned the screen and it didn't help. Any ideas or should I just replace it. If I do replace will I need to go have it programed or can I just replace the part of it that's not working. The screen still lights up, the only wrong is the touch function is gone

 

Disconnect battery terminals and use a jumper wire from negative on car and positive terminals on car ( not the battery!!!) For over 2 mins. It resets the controller and should work on next ignition cycle