My 2004 Acura TL radio display is not currently working. For awhile it would cut in and out and would not affect the audio unless you were listening to XM. If you were listening to XM it would cut out when the display cut out. I have disconnected the battery looked at fuses etc. Nothing has helped. Would a defective XM part cause my display to go out or would a defective display cause the XM to go out. CD player, am fm and radio work you are just flying blind when searching the radio and switching tracks. Thanks in advance for your help.