Audio Systems: Dealer Satellite Radio and Factory DVD, fm modulator, audio signals

Question
I have a 2005 Ford Expedition, I have had the factory/dealer satellite radio installed, now I cannot use my factory DVD player when I have satellite radio selected.  Let me clarify, the DVD will play the DVD (video only) through the headphones I receive the satellite radio audio.  When trying to select the DVD from the back seat controls I get an "SRC Conflict" notice in the radio dislpay.  With either AM/FM or CD selected I can play a DVD normally.  I want to have both satellite and DVD, is that possible?

Answer
hi
at the ford training that is very small only 4 hour they told us  that the rear port input can only take one source
dvd
or sat radio  some radios have a sat button and the aux button for the RSE   in that case  we can not add anything we have ipods and other audio source but if there is RSE we can not plug there
because the audio signals are going in the same port
there will always be a src conflict  

the only way this might work is if you find a multi source radio (ford cd6 mp3 radio ) or adding a fm modulator for the dvd