Depends, if everything is sealed of nicely behind the controls it should be fine. Do you know the person that installed them? If not, it's a recipe for disaster.
All around, close it up completely. Don't use the cheapest silicone. There might already be water damage if it's not closed up and they already used the shower.
Depends, if everything is sealed of nicely behind the controls it should be fine. Do you know the person that installed them? If not, it's a recipe for disaster.