The first six or seven months I had mine, I took it out of my truck every night. Then I noticed that I was damaging my bay and my EMPEG. I started leaving it in all the time. When its really hot out the player wont turn on, or it shuts off a few minutes after its on. If its really cold out, when it powers up the display is very dim. Sometimes, if its really cold, I will get some type of strange ticking noise when the drive spins up.