Hi i gotta BOSCH S5 in mine bu ti am having problems with a fault code p0355 which could be down to the battery problems, when i bought it i was told it might not be the right one
what is the extra connection u mentioned?
so what was your result? did it work?
i got a miniVCD USB one but does not seem to want to talk to my 2006 GS450h
going to go for a wireless version next