Nonstopone it's not a good answer
read the ko faq in my link
a standart mars works with the 301 i've got one and looks to work with the 302 (i have to do a training to see if there is not interference) but it works in my car
standart mode is pretty slow so it's normal that a top of technologi receiver like 302 can work (a ferrari can go at 50 mph as well )
so it's my experience and ko Faq and some reading in helios post
simon
sorry for my english i'm french