Pretty good info, I would also recommend if your going to run new wires to the door, running it thru the grommets provided, inside the tubing. Use a coat hanger, the same way he did for the tweeters, you may also want to dislodge the grommets first, and maybe even add some kinda lube, like a small dab of dish soap.
Now if I can just get my wife to let me upgrade her speakers. =}
Looks like the door's speaker hole cut out is larger than my RSX's, I had to cut my door to fit my 6.5's, even with a 3/4 mdf spacer.
BTW
If you want to get some custom made MDF rings at a low price.
http://www.edesignaudio.com/edv2/ringbuilder.php
They have some good deals on most everything else. I just got these
edi6500's put in my RSX. EARSEX. =]