I have a 2007 S60R I'm pretty sure somewhere in my car is a AEM module, because I have back up assist that mutes the radio and displays back up assist when in reverse. According to the install manual I've seen the AEM module is supposed to be in the right rear storage/tail light access area. I don't see it there, I check fairly carefully though I don't know what it looks like as the photos that I've found are black and white.

Any help would be great, or a way to telemute my HU-850.
Thanks!