So i took out my seats recently to get to the trunk and after i put them back in my rear speakers stopped working. I have factory Bose speakers and amp. I did some digging around and found that a cable that runs from the amp is cut. It is a large black cable that appear to be the power cable for the amp. The problem is I cannot find the other end of it where it has been cut. Can anyone help me find where the amp power supply runs to? please im desperate cannot find answer anywhere on internet.

 

Exactly where is this cut wire and what year is you car?