I've swapped rca to rear and put the left and right are fine. It just seems to be the right front that's causing the problem. I'll take the cover off when I get time and look for any damage

Hi. I've recently purchased a 2nd hand xs4600 as I used to own one and love it. I've fitted some component speakers and 6x9's to it but I have no mid or bass on the right channels. It's not the speakers or the crossovers as I have tested them on the other side. I just find it's strange that the 2 ri...