my car is 2007 Camry with 39K miles I don't drive a lot but have been wanting to install dashcam for long time and I am going to bestbuy today for the installation. We are looking to upgrade to a new SUV in couple of years though not certain. So I have two dashcams with me. One is the A118 that I bought from Spytech 2 years ago. Can I install this in the back seat to capture video from behind? Will it work as review view dash cam? I have a similar compact HD dash cam called Anker Roav that I am looking to install on front at the windshield . Should I tell them do hardwiring just hide the wires? Do I really need two dash cams in this car? Once installed , is it difficult to transfer them to a new car? IF in the future we buy another car, I am selling the Camry we have now . Please your advice and opinion! Thanks