unsupervised ontape question

Hi All! I want to run ontape from a cron job but it requires that you press "Return" after mounting your media. Can someone please tell me how to pass ontape a single "Return" and if it still wants the media mounted to get it to exit. I've tried a here file, i.e. ontape -s -L 0 << !dummy ! but that just causes ontape to continually tell me to mount my media if it isn't mounted. No doubt this has been done loads of times before, so forgive the reposting, I just can't find the solution. Cheers, Danny