i want to purchase some new speakers for this Honda civic del sol. i usually buy from crutchfield.com. they have come out with sound ordinance speakers and they back them with a 3 year warranty. cool well they are saying the 6 1/2 inch component speaker will not mount in the "pillar 1" location due to it being to deep. it measures 2 1/8 inches deep, yet it says many other 2 1/8 inch deep speakers will fit.
so i need to know is this a stupid glitch/miss information on crutchfields part and does anyone know for certain what the depth of the speaker hole is?

I don't want to purchase speakers I'll have to fight to return. thank you in advance