Does something like this exist? Does anyone have one?

I had the OEM TV module installed a few months ago and whenever I turn it on, the sound stays on even when I (try to) switch back to radio. The OEM kit came with an installation manual but no user manual. Can anyone out there help?

__________________
Frank

Current Ride:
'04 4.4i Carbon Black Met./Dove Grey
NAV, Sprt Pkg, Star Spoke 87's

Recently Sold (and still crying about it):
'95 Dinan M3 Avus Blue/Dove Grey
LTW Wheels and adjustable front splitter