Yeah, so i have a problem with one of my speakers(well most of them are blown, VERY long story), but anyways. The lower driver front speaker is not working at all. I checked the connections today in the door and everything was hooked up and not loose. I have the HK. I know that there are some other connections under the paneling in the back, do you think they have come loose?

 

before you go digging that far, try swapping the two front speakers so you
can rule out a totally blown speaker