You say that you turned a corner in your car and the empeg stopped working?

I know you guys are looking at something on the inside of the player, so that's fine and everything, but why aren't you also looking for loose wires on the docking connector as described here? That seems the most likely explanation. Either that or a wiring problem somewhere else in the installation. Turn a corner, wires move...

(Edit: I know you said AC power doesn't work any more either. Remember that a wiring problem like the one linked above could cause a short circuit that could theoretically be the root cause of that blown component.)