Hello,just on acceleration very slight whistle whenever I’m barely pushing gas pedal.very similar to worn out front brake pads wear indicator sound.Our LC has 45k all stock except Ko2’s 285/65-18 on stock wheels.Front breaks were serviced 5k ago so pads are new. Stops when just rolling.This is during and after a big rain going through standing water,ect.We have really only noticed it after rain and no music only a few times? Could be some rear drive shaft/drive line noise? Any ideas appreciated thanks.