https://forumscdn.lenovo.com/old_attach/131460i0C7D596C2DB48701.jpg Just trace all those back into the proper pinout and you'll be golden. Be easiest with breadboard wires: https://www.amazon.com/dp/B01EV70C78
These cables: https://smile.amazon.com/dp/B01EV70C78/ref=cm_sw_r_cp_apa_fabc_c6sbGbS8B4N1K?_encoding=UTF8&psc=1
If you don't have a set you will need some.
I pulled the left and right speaker connectors and used some jumper wires like these below, inserting the male end into the speaker connectors and plugging the female end into the new board in the left and right speaker port.