^^^^smart mod i did that on my old accord and got a keyless entry alarm i also removed the door locks you know the part that pops up on the inside so if i left the windows cracked someone could pull it up im def feeling your 4 door

for the part under the dash i think just about everyone here has that issue the little tab breaks so easily i found mine at the pull a part on moreland ave they do have quite a few 4 doors in there but finding one with black int. is gonna be the hard part. i go out there alot just to learn how to take stuff off of my car so if i see one ill pick one up for you