Or you connect he same way you have PLUS outboard amps. Then you can blow more coin. That's what I did.

I use my Clarion HU as a preamp - as well as tuner and CD player. Though I've only listened to about 1 minute of radio and have no intention of ever using it again AND, I've only listened to 1 CD.

It allows me finer control of my main and sub levels plus it has a much smoother rotary volume control.

Bruno