Prebuilt and audio fixes

Change-Id: Iacd4138cabad09bd30a33eef3fa3b1da2b073c0e
GPS tweaks and audio tweaks

Change-Id: Ic1188273edbbf5996ec4d7ef85decc9915fe382c
Update

Change-Id: Ie9de2ddadb0038c9ce48a0168bd2eac38ec848a3