On the Radio Mystery Cache

This cache is not at the posted coordinates, the posted location is the Cardiff Park trail head, which is a great place to park and walk to the cache location.

As Puzzle caches in the State of Delaware go, this one is pretty basic and straight forward.
There is only one clue and here it is:

Radio Message

(Be sure your computer's sound is turned up and that it has an MP3 player, if you can't hear the clue)

Check out the view from the highest vantage point in Delaware

Mounted 417 feet above the cache location this camera delivers amazing views of the surrounding countryside. This is the highest vantage point in the State of Delaware, and on a clear day you can also see New Jersey and Pennsylvania from this location. Check back often to see approaching weather systems, sunrises and sunsets, city skylines and more.

Note: This cache is hidden in the shadows of the WDEL radio towers, however you will not need to trespass on WDEL or any other private property in order to find it.

If you are first to find this cache you will win this unactivated FTF geocoin. Congratulations to JustinDE for getting his very first First To Find on this cache.