Hi I have a problem with my Sat Nav in my 2014 fourtwo grand style cabrio. For some reason I have lost the gps signal to my sat Nav, but every thing else works fine on the unit, the unit is a 970Alpine. And for some reason the sat Nav seems to think that I am in Paris and can't seem to change it ,wouldn't mind but have never been to Paris. Also when I tried to get my Tom Tom in there it then knocked out the gps signal to that so can't even use that, and it interferes with the signal on the sat Nav on the I phone really confused as to what to do many thanks for any advice.