i have the same problem with the same speakers! i tried dremeling down some of the honeycomb on the rear plastic door grills, but the tweeter still hits it.
may be a dumb question, but how did you get the speaker and spacer to fit into the inside of the door? were you able to fit it through one of the holes in the door? my doors are completely covered in raammat, so i can't remember if the holes are big enough to fit a speaker and spacer through....TIA!