Although the following video is of Amtrak, not VIA Rail, I thought it of interest anyway, since VIA will be replacing its GE P42DC GENESIS locomotives with Siemens Charger locomotives.
Admittedly there are some differences though. For one, VIA is purchasing the SCB-40 (which is what Brightline uses), not the SCB-44. They are very similar however.
VIA also uses a slightly different horn on its P42DCs, and the same could be true with he Chargers. I expect there to be some other customizations as well.
One thing I noticed from the video, the Chargers seem a lot quieter than the P42DCs, especially when idling.
• Video Link