I don't have the aux input setup, but I can't say I like the idea of having the plug inside my glovebox. Are you going to be driving around with your glovebox open? Or are you going to plug in the ipod, turn it on, put it in the glovebox and close it?
I have a blitzsafe aux input adapter in my trunk and I ran RCAs from there through the split rear seats into the fold down armrest behind the leather velcro'd flap. All the wires are hidden when not in use. It is convenient and I don't have to have my glove box open to access it, which could be a bit inconvenient for the passenger? When the aux is selected it appears as "CDC 1-99" on the display.
Just my $0.02