Wii U game pad home button solder points

[LordDarkScream]

I'm working on doing the raspberry pi wii u game pad and have hit a bump. I can't get an answer from the original post or find anything on google. Any help would be grateful. I need to find the correct solder points on the home/tv/power button board. I found one image but you can't make out where the wires were attached. Thank you ahead of time.