Well, it's because I wanted to install the factory antennae so that it will look like it was on already and installed by the factory, IMO it looks pretty cool. I just added leather seats to my 05 EX so i kind of want to go the extra mile by converting it to where it looks like it came with leather seats by adding the xm satellite radio antennae on the outside. This might sound dumb and i know it is but i dont even wanna get XM, i just wanna get the antennae.