inputs.text: use product - addon gps module work kenwood models 2009 2010 models start using different unit not work thehem also work international model example ddx514 us ddx5024 europe ddx5034 asia specific model comes without maps says blank come software need purchase maps region garmin distributor make sure get maps sd card format unit manufactured garmin also use maps gvn52 gvn53 insert sd card onto knag431 ready navigate list us models work find equivalent countryregion easily ddx514 ddx714 ddx814 ddx512 ddx712 ddx812 ddx6019 ddx7019 ddx8019 ddx8017 ddx7017 kvt514 kvt614 kvt512 kvt719dvd kvt819dvd kvt817dvd kvt717dvd kvt617dvd kvtm707 lz702w lz800w following models work navigation part maps routes etc not able use xm traffic feature navigation module not used outside us xxv05v kvt915dvd kvt815dvd kvt715dvd ddx7015 ddx6017 unit not compatible kvt911dvd kvt910dvd kvtm700 vz907 lz651w lz700w use knadv4100