FF1078
Registered user
Opened my new zumo660 yesterday and am a little confused about the power lead, there are obviously the red and black power leads to battery, mic. in and speaker out and then a funny looking thing with a sort of plastic clip on it, any ideas what this is for please? Also it didn't come with a user manual, it did have a quick start manual but nothing more than a few pages, is this normal? I want to learn how to use all of it's functions and cant or is it just trial and error?

