Armaant

So this is just an idea as I don't have my cz yet, but I was thinking about keeping a usb cable connected to the cz and then running the cable into the coin holder. The idea is that I can connect a Palm treo650 to the cable and upload maps from the phone if i wanted to. Anyone know if this will work if i leave one side of the cable always plugged into the cz? Also does anyone know if it will be possible to upload from a treo?