I don't really want to tear my radio out, and was hoping that someone might know the answer to my question .........before I go to all that trouble! Does anyone know if the back of the head unit of my 2005 Silverado radio is going to have an AUXILIARY INPUT jack, or a CD CHANGER INPUT jack????? The head unit is a stock GM unit which has AM/FM/XM with a single CD player. On the lowest row of control buttons is a button labeled "BAND/CD AUX" which mkaes me think that PERHAPS it might have one of those two different inputs. Thanks in advance!!