Arrived in the post

Sweet! My package finally arrived from Eurorail Hobbies today. My portals. The viaducts. And more importantly, the station announcer. The device is activated by a photo sensitive device, which is triggered when trains arrive or depart the station. However, it's quite large so now I'm trying to figure out how to install it so it's not visible yet still stay audible. I'll probably have to position the photosensitive device into one of the platforms and run wires into the station building. It's the only structure large enough to house the speaker. I didn't like the background noise. I was hoping the sound quality was a lot cleaner. I wonder if I can electronically replicate the bing bong?