The larger flip switch is for power to the Laser Interceptor system - basically its on/off. General best practice is when its activated to slow down and then turn if off (allowing the cop to get a reading at an acceptable speed). If you JTG (Jam to Gun) the officer is going to know something is up - even if they are legal you may be pulled over and hassled or given a lesser ticket (tint, etc).
The **** is for bass control (rear sub). Then the control box is for the Bell STiR+.
The 2 aren't integrated - you can get the escort (Bell & Escort are sister companies) version of this system if you want one system - but the Laser Jammers arent nearly as good as the LI's. So.. Buy the STiR+ and get the best radar setup out there.. and spend the money saved for the LI's and get the best of both systems.