Do you have a trickle charger or float charger? If so, you might want to try removing one of the side lights and hook up to the pos/neg wires. It doesn't take much juice to unlock the doors. If your trickle or float charger has around a 2 amp setting...this may be enough to engage the remote UNLOCK...which will allow you to enter the cabin and raise the hood wher you can hook up a battery charger (or jumper cables) to the jump start terminals in the engine bay.
