cd changer rf modulator location?

95 Camry LE - I have a 12 disc changer in the trunk that has stopped working after I ejected a broken cd disc. I get an error message on my control changer which directs me to reset the changer as well as the rf modulator. I reset the changer but cannot locate the rf modulator.

Where would/could it be located? Also, where can I get the adapters which hold the player to the trunk lid. They cracked and my changer is sitting on some boxes.

thanks