How hard is it to replace the LED bulbs in this housing? I'd rather do it myself if possible so I'm not without a car for half a day. Thanks!

No idea. I disabled mine when I insalled the spoiler.

how do you disable it??

unplug it..

you can unplug it from inside the trunk

The clip is located under the rear dash, just unplug it and tape the wires to the underside of the panel (to prevent rattling).