Ive got the LOC installed directly into the head unit, becuase i cant find a damn thing about where my amp is (non bose and definitely not under driver or passenger seats). My issue is im not getting the right sound from the sub, it detects sound and turns on properly but BARELY makes any noise whatsoever. The audio input with the p300 is that boxed 4 prong type connection with female RCA inputs, however i bought the sub 2nd hand and original owner had cut the RCAs off and spliced it to speaker wire. So i tried splicing it directly to an RCA which runs into the LOC. Im assuming thats my issue and i need to spend the 40 bucks to buy the new audio input adapter, just before i do was hoping for some input.... ?