Sounds like a problem with the speakers themselves, I recommend trying to wire in some external speakers and see if they work, if so the speakers need to be replaced if not check all visible wire connections and solder joints as well as the P.C board for burns and shorts.
I just spoke to Stillwater Designs tech support. I had the same problem - Zune in dock, Zune working, no sound. I also tried to play it thru the AV jack -- same problem. After asking me if I had unplugged the Kicker (I had, several times), they authorized a return. Not sure whether I want to return to Amazon for credit or return to Stillwater Designs for new unit.
you will not be able to upgrade window media only goes to 10 for windows xp. if you are having problems with playback then there are video and audio code packs for windows media that are updated and free.
There are 2 ways you can delete bookmark on Microsoft Edge
·Click on the three lines at the top search page.
·Select Favorites icon, which displayed on the screen.
·Now right click on it and remove a bookmark.
Go to File Explorer -> This PC -> select Local Disk(c)
Open User
Select Winse
Open AppData
Select Local
Scroll down to select the option Packages
To select Microsoft.microsoftedge_8 wekyb3d8bbwe
Open AC
Select Microsoft Edge
Open User
Then select Default->DataStore->Data->NoUser1->120712-0049->DBstore->Spartan.edb (right click) -> Delete
Suppose if you have any doubt Please see this video tutorial for better understanding https://www.youtube.com/watch?v=XFn_6849PGM