low beam problems, aftermarket stereo system... please help!!!
 

Hi, one day i've decided to upgrade my stereo system... as it was done i added about 2000watt audio system, now i have issues with power. The problem is that my low beam lights won't start... At first when starting the car i had 2 wait 4 about 1 or 2 minutes 4 the lights to turn on after turning the switch, now they wouldn't start at all... At first i thought it's a dead battery, but the rest of the electonics works well, the high beam works perfect, the car starts perfect... can anyone help? BTW i own an european 1999 S80 2.0Turbo.