someone snapped off my rear wiper.
its a rdx,i posted on that forum but i would think the mdx is the same.
anyone ever replace one?
i ordered the parts.arm and wiper blade.
i have a question.

i removed top nut,but below it was another metal nut.
the same one that comes encased in the replacement arm.
the one in the replacement arm is not removeable,so the one that broke off from the old arm needs to be removed.

i tried turning it both left and right ,no movement at all.didnt want to force and maybe break rear glass.
then i noticed the new metal part in the new arm is not even threaded.
what holds it on and how do i remove it?