RYSJM | P3 HUD OBD+GPS Dual System Car Head Up Display Digital Speedometer Tachometer Slope Meter Water Temp Alarm Auto Smart Gauge

Auto-match models, plug and playAccording to OBD or EUOBD,( the on-board auto-matic diagnosis system) plug and play.- Judgment method:Open and find the sticker under the hood.lf OBD2 CERTIFILE can be installed (as shown in Figure 1)Or check whether there is an automobile diagnosis port under the steering wheel (as shown in figure 2)(u.s. cars can be used after 2003 and most other cars after 2007.)