I cannot seem to program expressvu remote to control my amplifier I have called tech support and they couldn't help me. I have tried all of the codes in the back of the expressvu guide. The way I was trying to program goes as follows. I push and hold AUX until all 4 buttons flash I enter 2 along with the 3 digit code provided in the expressvu manual I then push pound and then the record button and nothing has happened. What am I doing wrong?