I had Ford install this and it worked well for a couple years...now all of a sudden when I press the remote start button, it acts like its going to start, locks the doors, lights come on, but then it just beeps "once". I looked in the manual but it doesn't say anything about 1 beep, it starts at 2 beeps...so I was wondering if any of the guru's out there can help me out. Much appreciated!!

~ Tony