I installed a XTRONS TE706PL Android 8.0 H.U. today. It was fairly straight forward and not too difficult. I've included a radio pin chart above for whomever wants to replace their own H.U. This unit replaced my SE H.U which was still a fine unit but I was wanting one with ability to run some APPS like Torque. I wired it to my existing rear camera and microphone, but not the GPS. I used the GPS that came with the radio and installed it between the vents behind the face-plate like many others have. The plug didn't match the new one, so I had to decide to add the GPS from the new radio. Plus, I wanted to not make too many cuts so I can go back to stock if necessary. The rear camera has it's own plug from factory and is already has a RCA Video in, 1 wire labeled 'BV Power', and 1 wire labeled 'BV Ground.'
It works great! If you have any questions let me know!