As I went to re-solder by bypass contacts on the head unit after having the Flex cable upgrade completed, I burned the contacts away, down to the resin in the circuit board itself (I know I'm a idiot). I have dis-assembled the head unit with the hopes of soldering the same contact on the revers side of the board but there is not a direct correlation on its reverse.

 

Does any one know where I need to solder on the reverse side? Please help.