I recently purchased the Unit US-JY-UO134N4GS-H with Dashcam. The FM works fine but the AM part cannot tune in stations. it is I think using European frequencies. Tunes 794 then 801 Khz. not 800 khz. like it should. Is there a way to fix this? On the dashcam on the display it reads the speed as 9 kmh no matter what speed I'm doing even though the GPS igo and Sygic are working correctly. Any help appreciated.