Originally Posted by 949
is it the depth or is it the cut out that is the issue?
The cutout. I can't say for sure whether the depth will be an issue (2 5/16" is RIGHT on the cusp of being too deep to clear the window without a spacer), but the cutout for the ES-6 is 5.81" (HUGE). A "normal" 6.5" speaker has a cutout of about 5" and the OEM hole is not much larger than that. In order for the basket to seat flat on the inner door skin, you need a spacer to move the basket away from the door skin. While you are at it, your spacer might as well be cut for the 5.81" cutout requirement.
I can't find a basket diagram for the CDTs (what CDT calls "technical specs" is nothing more than a sales brocure: http://www.cdtaudio.com/pdf/tech_specs_pdfs.htm
) and the last 3 times I called CDT to determine the cutout the technical "specialist" argued with me that all 6.5" speakers have the same size cutout. After pressing him to measure it and having a 5-minute debate with him on WHY I might need that info, I finally told him to do some research on what constitutes a normal cutout and hung up.
The speakers that you want are not even on the "ES" series sales brochure: http://www.cdtaudio.com/pdf/tech_pec.../es-series.pdf