Hi all,
I think I have wrecked my Navman the Cig plug broke and i cut it off and wired it up to anther spare one.
Since then i have noticed that on the old plug. The out put is about 8v. I have put 12v through it now, has any one opened one up i am hoping that there is a fuse in it. i can change or how much it will cost to fix.

Thanks all.