ok guys I'm needing your input....

I'm now a proud owner of a brand spanking new pick up truck, the dealer says to improve my odds against corrosion I should have an electrical box installed in it that adds a small micro electric pulse/ ion charge to the vehicle rendering the need for annual undercoating obselete, now the winters in Ontario Cda can be pretty brutal on vehicles, especially with the liquid solution that's put on the roads..

my question is this .. does this technology actually work, is it proven or is it the dealer trying to get some more of my cash... should I stay with regular non-drip undercoating, I'm hearing alot of conflicting stories about these "magic boxes" any feed back would be appreciated.

       Have a shiny day!

                jim.