My 12v power outlet in the middle compartment lacks amps to charge my mobile phone. I took a 3hr trip to Austin and had my phone plugged into the 12v socket and noticed the battery drain while I had Google maps running. On my Porsche, under similar conditions, the battery level either stays constant or increases, but never drains down. I can only conclude that amperage is unusually low in those outlet sockets. This has been like this since I've owned it over a year ago, but never bothered me until doing longer trips. Has anyone experience this and is there a modification to increase amperage?