I was wondering if anyone else has had this problem. After I spliced a line out converter into the rear speakers wires on my 05 the volume on the rear speakers decreases a lot. I'd say they're about half as loud as they were before. Adjusting the gain on the LOC didn't help. I double checked my wires and everything is hooked up correctly so I maybe the LOC was bad. So I tried a different one (different brand too) and I am still having the same problem. Any suggestions?