First step is to install the Ubuntu-restricted-extras and Lubuntu-restricted-extras packages
Open Synaptic Package Manager via the menu
Preferences/Synaptic Package Manager - you will be asked to input your password
In search box enter the following and press search
You will then see the results - select the following:
The way I select is to right click on the item - that brings up a menu - left click on mark for installation. Next screen select Mark. Continue this until you have marked all the items needed for installation. Then at the top select Apply - then Apply again at next screen. Installation will then start.
At some point during installation a license message will halt the install. Do Not cancel this message or your install will be incomplete and you will get problems with an incomplete installation - learn from me - because that is what I did first time around.
To accept the license use the Tab key and highlight <Ok> and press Enter. At next screen use Tab key and select <Yes> and press Enter. Installation will then continue
When you see Changes applied and everything appears to have stopped you can then close screen and move onto next step - installing Gstreamer
sudo apt-get install gstreamer0.10-ffmpeg gstreamer0.10-fluendo-mp3 gstreamer0.10-gnonlin gstreamer0.10-pitfdll gstreamer0.10-sdl gstreamer0.10-plugins-bad-multiverse gstreamer0.10-schroedinger gstreamer0.10-plugins-ugly-multiverse totem-gstreamer
Now you can install Radio Tray. This is available in the Synaptic Package Manager but I found that it is not the latest version. So I went to the website and downloaded the Ubuntu package and installed it