I have read up on many of other peoples' solutions on fixing the factory 6 disk CD changers by Mach. Many of other peoples' solutions are incomplete so this will help someone who is as frustrated as I used to be. Well here are the full-proof steps to fixing the CD changer:
When you push eject and the CD jams...
1. take two knives (tweezers are too wide) and "tweeze" the CD out of the CD changer. This could cause damage to the CD, but it's better than not having a functioning CD changer.
Usually, the CD changer goes back to normal after this step. If it doesn't, close the lid of the CD changer, where it says CD-6 by...
2. Unplugging the car battery (5/16th on mine), plug it back up after about 30 seconds, and viola! The CD changer closes. Push the CD button and WAIT until it stops making noise. It's checking which CDs are occupied in every CD slot and realigning the CDs that are in the CD changer.
Well I hope that helps. The heat of the summer is what jams my CDs. I only have this problem during the summer.