i need some help.i have a 2001 lincoln ls v8. i was just sitting in the arbys drive thru and noticed the compass on my mirror flickering on and off. after a minute it completly shut off. now on my way home i turned up my stereo a little bit, and my compass turned back on. although it appears to be dimmer than usual, maybe its just me.. now b4 you ask yes i do have 2 subwoofers in my trunk, although they were not on at the time this occured. how can i fix this? loose connection maybe?