I have done nothing to this unit since 2011 when i added the new maps.   I tried this morning  doing the  home and back track thing then key on and nothing happened.  ;(  Same old same old,   working out of your truck with no tunes  SUCKS  lol .   Any help would be appreciated 

  Mike 

  Update :  Once  on startup the BAckup camera worked , but still nothing else.