I have a 400 Watt inverter that I use to run my laptop. Many times I forget to turn it off at night and kill the batteries. I wouls like to hard wire the inverter into the fuse box and just have it go on and off with the key. Any suggestions as to the best way to accomplish this. i wam thinking of mounting the inverter just undernether the rear middle seat. this will allow it to be out of the way, but still accessible to plug in accessories. Any advice will be appreciated.