Where can I find a pic or specs on the brackets &/or speakers that mount in the stereo dash pad of a '71 EC?

I had thought about using one of these at one time or another.

http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10101&storeId=10101&langId=-1&productId=179406&mediaCode=ZX&appId=383929

http://www.jcwhitney.com/wcsstore/jcwhitney/images/imagecache/I3504.gif;pvc2153cc14e0a203f

Hello Danny,
Here are some pics of what I did with my '72 dash (http://levitanj.home.mindspring.com/elky/restor2/page1/page1.html).
I swapped the mono center dash for a stereo dash. I bought some brackets / speakers on ebay that were from a 3rd gen elky. I took the brackets off the speakers (which were no good anyway). I then attached some Kenwood 4X6 speakers , model KFC-4675C from Best Buy. They sound pretty good and are supposed to handle about 60W. The radio I have is not the powerfull. I will have to get an amp to push them a little more.

It took a little patience to get the speakers in there, but it can be done. The drivers side is a little tough with the headlight switch. These were the only speakers I could find that had the magnet in the correct location to fit in there. Plus, the speakers had all these extra holes and slots for the screws.

Good luck,

ElkyPete willl that headliner deal will it fit in my 79?