Hey guys, I recently installed a PAC GM9-AAI in my '02 Yukon so I could have my XM thru the Aux input of the Cassette deck. Only problem being is that you need to have a tape playing in the cassette for the thing to work...well my tape player is shot. Is there anyway to feed voltage to or drain voltage from the serial bus at the tape player so as to TRICK the radio into thinking the tape player is playing? Atleast I assume that the serial bus is what is telling the radio there is a tape playing. Any ideas anyone?