I installed some audiobahn front component speakers in a 93 fire bird. The front midbass component worked when I installed them but there was no high, he had to get home so I could not look at it right away. On his way home the front midbass components stopped working first one then a little latter the other. I figured out why out why the tweeter was not working right away the low pas filter was on in the amp. But I can't get the lows to work please help.