Audio Systems: CD player shpwing eject error, auxiliary input adapter, mercury mountaineer

Question
I have a 1997 Mercury Mountaineer and replaced the factory radio with the Radio F87F-18C868-AC(I think) as my previous radio did not have a CD player.(this radio has AM-FM, cassette and CD player). About a month ago, the CD player would display an 'eject error' message but the CD would still slowly eject. Now the player will not accept a CD of any kind. When I try to place a CD in the player, it will not take it. It will eventually display the 'eject error' message. Do you know what may be causing this?  Also,is there anyway to install/attach a Sirius radio to this radio?

Answer
sorry hard to know whit out the error number or opening the radio,
this cd players are very good and don't give many problmes, they just don't like cd's that are not original

yes there is a way to input audio into the ford radio from any source
use this interface

http://www.oemautosound.com/pc-173-86-pie-frdn-aux-ford-1998-and-up-auxiliary-in...