I love my 2007 Nissan Frontier. I bought it new. BUT, I have never been able to get any heat from the vent for my feet. With the possibility of another blizzard in my part of Texas, I would really like to have heat to my feet. At one point, years ago, I talked to my Nissan dealer, but unfortunately, they were no help. Can anyone tell me where I might look to fix this issue? Thank you in advance.