Installed a Flysight Black Mamba TX5820 V2 Transmitter on my Alta this evening and things did not go very well until I compared the cables that came with the transmitter and the cable that came in my Alta bundle. The power leads were reversed. I checked the forums and the web to see if this was a common problem but did not find anyone else with the issue. It did not appear to be a common problem. Fortunately, the transmitter's power connector is idiot proof so nothing blew up. Using some very small tools I was able to successfully remove the red and black wires and switch places. Now everything is perfect. It probably would be a good idea for the QC department to check the cables that are included with the Altas and make sure they are wired correctly. If anyone else has trouble mounting a transmitter I hope this helps them resolve the issue.