''CDDJ ERROR'' WHEN ATTEMPTING TO PLAY VIA ALPINE CHANGER

I reviewed the various trouble shooting procedures that you recommend for Alpine CD Changer models 9811, 9813 and 9815 but your scenarios do not necessarily line up exactly with the symptoms which in the "Summarize the problem" section above reflects error message "CDDJ ERROR" on the in dash LED display. I have also reviewed the one problem that had been submitted earlier to the knowledge base for Alpine CD changers that specifically described failure to eject a magazine scenario. I believe that an Alpine changer model somewhat different than mine may have been described in that article. I have not personally attempted to dismount the changer in question and/or perform any maintenance/trouble shooting at this point other than checking for a burned out fuse.
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I do not know which exact Alpine model equipment that was factory installed in my 1999 Lincoln Town Car when I bought the car in 1999. The changer is a trunk mounted model and receives a 6 - CD magazine. I recently swapped out the 6 existing CDs in the magazine with other CDs and reinserted the populated magazine in to the magazine changer. The magazine appeared to self load as normal and I closed the changer cover to prevent foreign matter from entering the mechanism. That is the mode in which I leave it each time I reinstall the magazine. When I started up the car, the dash display LED indicated that CD 1, track 1 was attempting to be loaded. I then received error message "CDDJ ERROR" on the in dash LED display.

I then immediately went back to the trunk of the car, slid the changer cover open and attempted to eject the magazine via pressing on the eject button. Nothing happened and I did not hear the sound or see the usual movement that the mechanism makes while the magazine is being ejected.

Question No. 1:

We have been experiencing outdoor temperatures in the low 20s here in south central Pennsylania. Could the extreme low temperatures be contributory to the magazine ejection failure?

Question No..2:

If so, would it be worth while to apply some conservative heat to the changer mechanism area (a hair dryer or some other portable heating source, for example) to see if that "heals" the ejection mechanism?
What other work arounds would you recommedn given these descriptions?

Question No..3

Due to the age of the vehicle (over 9 years old) is the above described behavior symptomatic of an electronic changer unit which has basically exhausted its normal productive life span?

Question No. 4:

If so, should I "bite the bullet", so to speak, and resign myself to having a replacement changer unit (Alpine or some other compatible manufacturer's model) commercially installed by a competent electronics technician? Or are the mechanics of dismounting and subsequent mounting of a replacement multiple CD magazine changer straight forward and simple enough that I, a layman and not necessarily experienced in auto electronics repair/installation, could do the work myself and save the expense of the commercial work? I am a 70 year old retiree.

Question No. 5:

Are most of the replacement CD changers plug compatible or should I stick with Alpine given my circumstances?

My local Lincoln dealer has indicated that if I wanted to have them repair/replace the unit they would simply dismount the changer while I waited, send it out to their local electronics technician repair partner and have the unit repaired by them if it is repairable.

Thank you in advance for your assistance.

Tom Lamb