I don't understand this. I'm rewiring my sub and i took off the rear deck and I don't have a subwoofer amp. This link shows the amp and I simply do not have it. I'll take a picture when the battery in my camera is recharged. I have the Nakamichi system.

Oh, and I guess all SCs have a switch to turn the key remote on and off. I don't have this switch yet my car has a remote.

This is increasingly making me agitated and perplexed.

 

the nakamichi has a 5 channel amp so no mono sub amp. . the link is the pioneer system which has 4 channel and mono sub amp.