I use Sena 50R while snowmobiling. To date we have a group of 10-12 people all using Sena 50R. The majority of snowmobile helmets use a RCA type plug for 12v heated shield. It would be great to incorporate a Sena that can charge using 12v or a small power converter that has 2 RCA ports one from the sled one to the face shield like a very small power converter with two rca to be used as a pass through or y connnector that attaches to the helmet using mounting tape and has a USB c adapter to keep the Sena charged at all times in the low temps.