Yesterday at the junkyard I found a stock JBL amp. In my car the previous owner cut the wiring in the trunk and took the amp out. So I bought the wiring and the amp, and now I have a question about the wiring. I can figure out how it connects behind the passenger side kick panel, but in the trunk what does the red/yellow wire, about 12 inches from the end of the wiring, connect to? Also, coming off of the amp is a wire, what does it connect to?