Anyone got any insight on how I could change the yelp tone on the EQ2B that is installed on our engine? Right now we have the awful hi-lo tone which in my mind is not very effective as a yelp tone. I've googled and searched in interwebs but found nothing on changing the tones. I know it's capable of a regularyelp as the engine in the next town over has it installed. Any help would be appriciated.