just tell her its so you can get home to her faster ..lol
it works with my wife...but then I could buy a jet engine with afterburners for my truck and she would just wonder why it is so bright behind the truck at night....not the smartest cookie when it comes to vehicles...but damn she is good lookin...isnt that all we ever want in a woman...no mechanical clue and looks...perfect 10 for me anyways...good luck with the plan