Like i previously stated i went with the Thinkware q800pro and have been happy with it. A couple of things i noted on the install and use. I went to the Thinkware website and ordered a refurbished dash cam ( looks brand new and no sighs of prior use
) which came with a rear camera and hard wire kit as it was much cheaper in price , the install was fairly easy as they definitely give you more that enough cable for the back camera , so much more that you really have to find a place to hide it
like i did , as i used the upper route in the headliner you also have to keep in mind the mounting spot if you have a rear sliding window .
Being an electrician ( high voltage , motor control ) i have no problem wiring it into the fuse panel , ( and this comment is not about opening a can of worms ) BUT i do have a problem with those inline piggyback fuses that you can buy on amazon ( have had hit or miss with electrical items purchase on Amazon ) and this is only MY opinion as i am sure they probably work fine , but again personally just don't trust them as i would if they were made by a more reputable company ,such as Cutler Hammer , Eaton , Bussman ect. , and i am sure if i researched it more i could possibly find one made by said companies.
So for now i am just using the cigarette socket power cable that came with the unit to power it and it has been working fine.
I should also state that i have been using a few different micro SD cards that have been working fine, both made by SanDisk , a SanDisk 400gb Ultra microSDXC UHS -l memory card and the other a SanDisk Ultra 128GB UHS-I Class 10 MicroSDXC Memory card , both with no problems and both much less expensive than the micro SD cards the dashcam manufacturers sell, but keep in mind THESE work in my dashcam and might not work in all so just do some research or like i did only order 1 of them and try it out.
thanks to the many who have contributed to this post