This is the side that faces the seat. The sub fires under and around the seat. The 120 watt amp is kept under the seat and is connected with a quick disconnect.This is the side that faces the seat. The sub fires under and around the seat. The 120 watt amp is kept under the seat and is connected with a quick disconnect.This is the side that faces the seat. The sub fires under and around the seat. The 120 watt amp is kept under the seat and is connected with a quick disconnect.