I want to put a custom sound system in... problem is that i need to know the depth for the speakers that can fit in, in other words do i need shallow speakers or can i install speakers as thick as these?

ALPINE SPS-600 6.5" 2-WAY FRONT CAR STEREO SPEAKERS SET | eBay
It would also be a real help if someone could confirm speaker diameter as well.

also if i wanted to install them myself does anyone have a guide to take the panel off the door?

Thanks heaps,
rapidryda