I have recently started having issues with my DNX-6140. I have searched all over and haven't seen any answers to the issue. There has been a few times now where I will start my car and the unit does not power on. Usually when the unit is powered off, I see a red light on the top left corner, but during these two instances the red light is off and I can not power on the unit. The first time this happened I checked the fuse, which turned out to be fine and when plugged back in, the unit started working again. The second time this happen, about 3-4 weeks later, I tried pressing the reset button and then the unit started working again. I have had the unit for about 6 months now and didn't have any issues unitl this last month. I am in Minnesota so I am wondering if the cold weather could potentially cause this problem. Anyone else experience this or know how to fix the problem?