I know some installers recommend wrapping the buzzer to diminish the volume. I giess it can be loud. As to settings, that would be a question to the staff at Tesla Offer. If you check their webpage, you'll see that you can email, but the time to response is long. Much better to use WhatsApp--a chat software. I had no familiarity with it, but was able to easily load it on my phone and PC. Either Warren (customer service) or Raymond (tech support) will respond, sometimes very quickly, sometimes in an hour or so. Remember that they are on Hong Kong time, so that is like 16 hours ahead of Pacific Coast time (and 13 hours ahead of East Coast time). So when it is 8:00 AM on the West Coast of the US, it is Midnight in Hong Kong (if I've done that right). So time your WhatsApp chat accordingly if you want a chance at a live response. Otherwise you can leave a series of questions on WhatsApp and I find that one of them will usually respond by their next daylight period.
He told me they are there until 2:00p.m. EST. If you send a message later than that they usually respond about 10:00p.m. But they always respond the same day.
Unfortunately, (I just discovered that) WhatsApp is owned by FaceBook. So if you have any problems with FaceBook, and we all should, then this creates a conflict. But our choices are limited. I advise being careful when you install WhatsApp and do NOT allow it to spam your list of friends and email contacts. Just communicating with Tesla Offer should be OK.
Just to add some insight into my experience so far with this powered frunk: I’ve been communicating with Raymond (via WhatsApp) since Feb 4 to figure out why my frunk isn't closing all the way. He’s been very helpful and responsive over the whole time (even with their Chinese New Year holiday). The time change has made it difficult to navigate as we really are never able to converse at convenient times for either of us, but he's still good about getting back to me same-day. His engineer has had me try about a dozen different solutions and none have worked so they are going to send me a new control unit as they finally think they’ve narrowed it down to that being the problem. Hopefully I’ll get this figured out soon.
Sorry you have had problems, but it is hopeful to learn that Tesla Offer has stood by you to figure out and solve whatever the problem is. At one point I naively thought Tesla Offer was some moderate-sized bureaucracy. Now I realize that they only have a small number of employees. (Maybe only "Warren" and "Raymond" in Hong Kong?) There are pros and cons to dealing with new, young, businesses. But in this case, their enthusiasm and energy, coupled with a desire to put out good products for Tesla owners, appear to make Tesla Offer the clear favorite among the competition. I am envious, because right now I don't have a car to install their product in! (Difficulties having the Tesla I purchased shipped to California.) I hope to rectify that situation soon.