Web searches may tell you the front doors mounting depth for XD/XD2 is 2.5,
but with the window down it is almost exactly 2.25, this has been measured multiple times.
Thanks to evilcalvin we know that .5inch spacers fit no problem.
With the spacer you can fit up to 2.75 mounting depth speakers.
Door Panel Removal for XD/XD2:
Rear Seat Removal for XD/XD2:
Elantra Acronym Key -Thanks Doohickie
The door panels themselves can be easily switched out if you wanted to install them.
*HELP ME MAKE THIS SECTION BETTER*
info/comments etc. all good info will kept
*Keep this thread clean, only post pertaining to the topic of stock speaker sizes and info about them.