First saber build plus first post in forum... so yes, massive noob here, know nothing of electronics except what I've read on here and from YT tutorials.

I have followed this youtube tutorial on how to build it so far: https://www.youtube.com/watch?v=sApB7J5JdZ4. However, I was unable to find the same wiring harness as the one in the video so I decided to wire everything straight to the biscotti to what I think is accurate to the diagram attached. None of the functions are working.

The LED was working before I wired it to the biscotti so it can't be that because I tested it, which also means it can't be the battery. I have also attached some images of what I have soldered in case anyone can spot the problem (aside from the shoddy job of soldering).

Red wire: +led/+to battery
Light green wire: -to battery
Dark green wire: -led
white wires: Activation switch
Blue wires: speakers

FullSizeRender 2.jpgIMG_3232.jpgIMG_3231.jpg

Any help would be greatly appreciated.