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.
This is the third order I've placed, and just like the other two, it was a smooth process. The order was shipped the same day, and arrived 3 days later. They had what I needed and at a good price to boot. I will continue giving these guys a first look when shopping for my electronics.
