So, I just recently started modding and decided, after finding a broken sp at a thrift store, to frontlight a GBC I picked up. While the frontlight looks and functions perfectly, there is noticeable noise that wasn't there before. I used a 47ohm resistor and grounded to the power switch housing. I guess I'm looking for help because I wasn't sure if I could add the capacitor to the power rail. Also, this has been prosounded internally, but it's just left and right without the ground. Resistors for speaker switching have been removed as well. Would adding a ground off of the volume pot help?
Thanks in advance to any help, and sorry if this issues has already been explored.