The PO installed an FM modulator and XM antenna. I have no use for it and finally rewired the radio back to stock.
Rather than selling for a few dollars on Ebay, FREE to any forum member (you do have to pay shipping).
Delphi SKYFi Universal Adaptor FM modulator SA10003
Delphi XM antenna on a super long wire (cut the wire during uninstall but that's a two second fixed)
Delphi SKYFi car cradle for XM receiver
Two converter cables to go between modulator and and radio antenna
http://www.amazon.com/Delphi-SA10003-SkyFi-Satellite-Modulator/dp/B00008Y8KW
Enjoy!
