After using this modded amp for close to about a week or so now. I am pleased to report that I have surprisingly lost A LOT (I'd probably have to say about 98.5%) of the digital noise and random popping that used to come out of the audio when I would play music in the USB mode of the JBL
head unit. The audio sounds a lot cleaner now, a lot louder at lower volumes, but most importantly the tracks sound much more cleaned up playing now vs. before when the amp was untouched there were just certain tracks that sounded like absolute shit because there was so much random popping.
Someone I talked to reffered to it as "digital noise." He nearly condemned the head unit and was thinking that was the problem I was having. I'm more then pleased to say that I am much MUCH happier with it now! I may crack it open and play with upgrading some more of the capacitors for maybe the woofers or even the subwoofer portion but all in good time.
If anyone would like to see some pictures of what the amp circuit board looks like let me know and I will post up. I only touched certain areas of the board so all I took was some focused pictures but there is a picture where I have the entire board in the shot and if you zoom you could actually see the voltages and uF ratings of the larger caps. The small orange reddish ones are 220pF (104 labeled) caps. (Just a FYI) Thanks all for your time.