Removal,
First off, remove the negative terminal from the battery (safety first!).
Then using the cut coat hanger push the two U sections into the holes in the radio (see pic). Push until you feel a slight click.
Then Using a bike tyre lever or small flathead screwdriver, gently leaver at the side of the plastic casing. This should release the whole head unit. There may be some velcro that gives some resistance but it will come with a bit of persuasion.
