SR4726X How do I remove the grille or the handle?

playit

The 2447 compression driver stopped working in my SR4726X cab. So I thought I could remove the grille, but it is pinched in a slot with rubber grille trim and I have no idea how to remove it without damaging it. So, I thought I would take a look at the Network bi-amp / Passive jumper, but to my surprise I see a wire hanging down from the 2447. So, I was thinking that I could remove the cabinet handle and reach in to put the wire back on the binding post, but no, no, the handle seems to be epoxied, welded or hermetically sealed for some reason??? . Any help would be appreciated