I would like to install one of these these types of speakers in the rear speaker mounting holes in my tC:

http://www.crutchfield.com/App/Produ...66W3V38&tp=111

http://www.cdtaudio.com/pdf/HD-M6_07.pdf

What is the mounting depth of the rear holes? What thickness of baffle must be used to reach the proper mounting depth + extrusion for these subs?

 

There is a lot of space back there. A lot more than the front speakers since the front speakers have to clear the glass windows.

But ill say those subs will be a tight fit.

 

4 3/16 inches mounting depth... should be no problem at all...

 

If you intend to use them as subs, get the JL (1st link), not the CDTs (2nd link). Why? Because the CDT pdf stated the Fs was 52Hz, which is too high for a sub, and I'm sure the Fs for the JL's is much lower, more appropriate for sub use. Just FWIW.