You'll need to use the DIN cage. It's a biznatch to get it in there, but it can be done. I wound up pinching it a little at the top and bottom to suck in the sides a hair, and I managed to weasel it in.

Once slid in place, you'll bend whichever of the tabs on the cage are convenient for locking it in there. I've always just used a screwdriver to bend them, but whatever works.