I mistakenly removed The ALSA config because of this guide . There is now no sound icon, as well no sound.

If I try to install the ALSA package from terminal I get the following error:

sudo apt-get install alsa-base alsa-base-udeb alsa-firmware-loaders alsa-oss 

alsa-source alsa-tools alsa-tools-gui alsa-utils alsa-utils-udeb alsamixergui
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package alsa-base is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'alsa-base' has no installation candidate
E: Unable to locate package alsa-base-udeb
E: Unable to locate package alsa-firmware-loaders
E: Unable to locate package alsa-oss
E: Unable to locate package alsa-source
E: Unable to locate package alsa-tools-gui
E: Unable to locate package alsa-utils
E: Unable to locate package alsa-utils-udeb
E: Unable to locate package alsamixergui

sources.list

## Regular repositories
deb  kali main non-free contrib 
deb  kali/updates main contrib non-free 
## Source repositories
deb-src  kali main non-free contrib 
deb-src  kali/updates main contrib non-free