Audio Systems: Sirius Radio and 1996 Lincoln Town Car, auxiliary input adapter, lincoln town car

Question
I have installed a Sirius radio in my Lincoln. The Lincoln has a JBL sound system, no CD changer, antennae is incorporated in the rear window. I purchased a Sirius FM direct adapter because we have no clear FM stations in our area. I bought the DIN's and pulled the stereo. Looks like I can't plug in there. I did see a cable in the trunk on the right side of the spare tire that is similar to the FM antennae jack. Can you tell me if this is where I need to plug into and what adapter I need to do so? Thanks for this great service.

Answer
the best way is to plug the audio from the xm to the factory radio, your radio needs to have a cd button and the connection is in the trunk right side of spare tire hanging from the rear deck you need this plug  
http://www.oemautosound.com/pc-317-92-pie-frdr-aux-lincoln-auxiliary-input-adapt...