I used this to control the volume of my marine amplifier using Sirius radio signal from my marine weather receiver.
It works perfectly.
My only suggestion would be a mounting option. I used Velcro.
I ordered an Alpine CDA-105 and paid via PayPal. Got a tracking number the same day and received the headunit and accessories. Great turn around and communication from Sonic Electronix, the install equipment was Scosche and was excellent quality. It was a pleasure doing business with you.
