ebay  253544154564 tap into lighter wiring under ash tray. Wire coat hanger to pass the cable through dash.
 Up A pillar and along screen
 A pillar can be  removed to hide the cable or get some sticky cable guides.
 Cable can be pushed under the A pillar trim but this WILL hinder the air bag
 I removed the A trim and used butyl to fix the cable in place Will NOT move.
Double sided tape may do just the same job
 Push the cable under the headlining with a trim tool  All done 
  Just replaced my dash cam as the  old one was starting to fail
 Still had to install new cable with new camera  
