There is no exterior speaker at the San Antonio station. There were two trains sitting there. My wife was at the wrong one and missed the train. It cost her 300 dollars to take a taxi to Houston to catch it. Amtrak is another example of a stupid federal entity. She was told she is not the first one to have that happen. Ride Amtrak at YOUR OWN RISK. They are nothing but federal stooges wasting our money.