to the armrest in my 91 seems tiny or about the size of my wallet, Im wondering if there is another Nissan(maxima?) or Infiniti whos armrest is about the same size but fatter and taller and will bolt in with slight mods ?
there IS an optional armrest for the G20 (touring models got it standard equipment). check the dealer or find someone that took it of their t model. (it's annoying because it gets in the way of the window controls)