check out this for that unused plateholder. its what im thinkin of doing:
http://http://www.licenseplates.tv/index.php/cPath/2_245?gclid=CJfQkt2_tIwCFQKOgAodcQpFGA
http://http://www.licenseplates.tv/index.php/cPath/2_245?gclid=CJfQkt2_tIwCFQKOgAodcQpFGA