1997 jetta 6 disc cd changer

I recently purchased a 1997 jetta GL with premium sound. The 6 dic cd changer in the trunk will not eject the cd case and I can not get the thing to play. It says on the stereo Er 2. Someone suggested that I unplug the thing wait a couple min. to let the static adjust then try again. This seems to be a temporary fix about 1% of the time. Any suggestions.