stereo radio mounting problem

I bought a rebuilt am-fm stereo unit to replace the standard one in my 72 coupe. All went well until I went to put in the amp. Does someone know how or where this mounts? It's about 3 times bigger than the old one, and no way will it mount where the old one came out. Is there a bracket or something that mounts it up. I am at a loss to figure this out. Need help.

Hello Tom !
I will send you on your e-mail a diagram of the dash and radio hope that will help you for your project.

Normand

Tom,

Got this image from Juliet back when I was looking for radio info. Hope it helps some.

Behind Juliet's dash

Thanks for both replies. I'm afraid that what both of you are showing me that it means that I possibly have the wrong radio. I will be able to look at it this weekend, and confirm that. My hook ups are a little different from the ones that your picture and diagram show. I really appreciate the information, thanks.