Anyone towing a Sienna Van

[kalynzoo]

I'm still trying to decide on towing the 2009 Toyota Sienna van flat. We have the van, and I would not have to sweat the minor stuff that happens when it is towed behind the motorhome. I know I need the Remco pump, the van weighs in at 4700lbs, so ok there. What do you do about leaving the key in...does it draw down the battery too much? The Remco needs power. I use a ReadyBrake which does not draw power.
Any comments by anyone towing a Sienna would be greatly appreciated.
Thanks, Gary

[Bamaman]

You'll have to check and see if the ignition is on when the steering wheel is unlocked. If so, you'll need to put a cut off on your battery's ground.