Thank you! this is great information to know. My go times do not work at all and they cant be set up from within the car - so I have additional issues to get through first. As for 120 v. 240 support, there is no mention of this requirement anywhere in the manuals, so is the consensus that it should work with 120? I would love to have 240 buy it is $600 for an electrician to do it and another $475 (i think) for the hardware?