Preamble: First time posting here. I'm a noob in electronics.
I'm installing an outdoor ip camera. I need to route the cables from the camera into a waterproof project box I got off Amazon. The camera has a 3/16" diameter cable that splits into three cables, each with its own pre-terminated connector (one for power, one for ethernet and one that has a reset button) - see attached image. I need to get those three connectors inside the project box and still be able to seal the hole around the 3/16" cable. The largest connector has a 3/4" diameter, so my plan is to drill a 3/4" hole in the project box to feed all three connectors into the box. Are there any diy "tricks to the trade" solutions out there for sealing around a cable who's diameter is narrower than the pre-terminated connector?