Bro, I see~ so i just unplugged to original plug, then try to jam to the new speaker, right?? if get wrong on ground line and signed out line, will the speaker be no sound??
Because i have little knowledge on it..... hope my poor chinese-english you will understand....
You can just follow me by looking at the positions on the small board (volume control).
Solder the wires to the same spots as I did, everything should be OK!