I have an older unit from this company. Only issue I have is that AM radio reception is useless when motor going. I have no problems with any other aspect. All works fine. Might have a problem in future should In get a newer iphone - wont be able to charge it from this unit as I have the old plug. I have Ozi explorer and IGO 8 as the street Nav. 16G memory stick with all the music I need. Also have the Tyre pressure monitor systen hooked through it as well. Been in the car since 2010.