reversing

Hi Guys, Had my 2013 CT just over a year now and love it apart from the odd niggle. The most serious of which is the missing misplaced grid lines on the reversing camera. Worked fine initially but now they are all over the place (and not always the same) The dealer I bought from (Toyota dealer)...

Excuse me if this has been discussed but what is the simplest way to get a 12v supply to a camera by the reversing mirror (and not by a cord from the lighter socket). Just am about to go to an auto electrician but would appreciate a heads up from someone who has had it done! Thanks

Has anyone noticed a periodic clicking noise from the engine/transmission while reversing? It happens to me every 5 feet or so of backing up... It's not constant, just from time to time. Let me know if this is common and what it could be. Thanks