Is there an app or a way to change the voice on the GPS? Like can I download other voices such as some GPS can. Like lets say I wanted, oh I don't know, Mr. T(I pity the foo' who don't turn left!) or, for sake of example, Darth Vader(Turn right, it is your destiny). Upon some exploring of my SD card I discovered where the stock voice is stored so I wonder if it would be possible to replace those, but does anyone know for sure how to that?