If I'm reading your post correctly, you want to know where to put the filter minder so it still tells you when to change your filter.
Most every post on this subject I've read says to throw it away because it doesn't seem to work as advertised. However, should you still want to use it, one post I read (on another site...shhhh) says to drill an appropriate size hole (I don't remember the dimensions, but it would be the size of the groove in the grommet) in the closed end of the filter and put it there. Since you'll be drilling from the outside in, make sure you catch all the shavings or they'll get sucked into the intake.
Hope this helped.
Howard