Is there one?

On the radio audio controls there is a Sub Woofer level setting however mine does nothing - is that right?

Is that setting only for the PREMIUM ICE?

Can someone please test this for me on their car (if you also have the HI ICE) and let me know if Ive been mislead or my sub has blown. I was under the impression that the HI ICE had a passive sub woofer and the PREMIUM ICE has an active/powered sub woofer?

Any way it would be great to know.

Thanks. GUITARS AND CARS - YOU'RE EITHER IN OR YOU'RE OUT!