HEy guys i have a 2003 nissan altima with the bose system. I wanted to check the wiring behind the bose head unit to see what kind of adapters i would need to add subs...and when i put it all back my head unit doesn't work. I took the plugs out, for some stupid reson i didn't take out the battery power..and then i pluged it back..i heard the cd moving and then when i was putting the entire thing back together...as i was putting the screws in to secure the harness i saw some really small sparks......someone please tell me my unit ins't craped out....anyone know what i should do?!?!