I have a 3-4 year old Pioneer trunk-mounted changer. It has performed flawlessly up until a few months ago. Now, on the newest disks I have burned, IF the temperature outside is cool, songs 5, 6, & 7 won't play. On the older disks I have burned, AND all commercial cd's, all songs play all the time. And the ones that won't play in cool temperatures will play when it is warm outside. Any ideas?