When I was a kid, about 25 years ago, I bought a cheap amp and a cheap second hand squire telecaster. Lately I have finally started playing that guitar a bit more intensely, and I noticed that whenever I was not touching the guitar there would be this annoying buzzing sound.
I always thought it was due to my cheap amp, and thus finally decided to upgrade to a better one. Unfortunately, with this new amp you hear the sound even more clearly, which means it must be my guitar (my flatmates guitar also doesn't have any issues with this amp).
I already brought my guitar away to a repair shop about a year ago, but the guy said it worked perfectly (after charging me...). I now decided to get it apart and am wondering if anyone sees anything weird with it.
I uploaded some photos here: https://imgur.com/a/Xfg3cET. Could someone check whether this wiring is ok or if something is soldered on wrongly?
As I said, while playing the guitar there is no noise, so my body seems to ground the guitar through the strings / front plate. I did check the electronics and there is a connection from the ground of the input cable all the way to the front plate, even though the cable to do that looks quite dodgy.
I also noticed that some of cables look quite thin, and some things look cut away. Is there a 'recommended wire' for electric guitars? And is there a 'recommended material' to shield the components against background signals?