1，view\activitys\homeview\src\homeview.cpp

#if defined(ENABLE_WIRELESS_CP) && defined(ENABLE_ANDROIDAUTO_2_0_WIRELESS)
#define DEVICE_WIRELESS
#endif

2，sys_config.mk

  ifeq ($(ANDROIDAUTO_MODULE),AA_2_0_USB_WIFI) 　COMMON_FLAGS += -DENABLE_ANDROIDAUTO_2_0_WIRELESS 　endif

ifeq ($(DISABLE_WIRELESS_CP),0)
COMMON_FLAGS += -DENABLE_WIRELESS_CP
endif

3，($(ANDROIDAUTO_MODULE),AA_2_0_USB_WIFI)和DISABLE_WIRELESS_CP