Hi folks, I have a 9090db. I wish I would of just gotten the 9090, but I guess that’s another story. So, my problem. Basically, it works with these two issues. Regardless of whether I am using FM or using an aux input, the right channel sounds normal......... as long as the mono button is pushed in. If the mono button is not pushed in, I have no sound from the right channel. The other issue is the left channel. The left channel is just very subdued, kinda tinny, no matter what is selected. I was considering replacing all of the caps this winter. I don’t think that has anything to do with these two problems, but it seems like it is the prudent thing to do. Any help would be appreciated. Thanks.