For BMW 1 Series E82 3 Series E46 E90 E91 5 Series E39 E53 X3 X5 Android DVD Specialized for specific vehicle models, installs on the license plate light with a seamless no-drill installation. Effortless installation with sleek, stylish aesthetics urchase Notice: ► Video Signal Compatibility:The video signal must be compatible with your device. Common signals are AHD or CVBS (most in-car displays allow switching between CVBS and AHD modes). ►Connector Compatibility:Ensure the connector type matches your device (e.g., 4-PIN or RCA). ►This product outputs CVBS or AHD signal(switchable).supports RCA connectors ►Signal Switching Guide:For displays requiring signal: Factory Settings Greater than Reversing (Image) Settings Greater than Select signal ATTENTION: According to our experience, some cheap Android head units has the software setting for AHD video signal , But the truth is they don't have AHD chips, so don't support AHD 1080P at all. If so, then you can only apply CVBS video signal. We recommend buying CVBS/AHD 720P camera. It is better compatibility for all monitors and android stereo unit. Tip: because there may be slight differences between cars produced in different countries, please check the size before buying Specifications: A: AHD720P CVBS / B: AHD1080P CVBS Color: As Shown Material: plastic Package Contents: 1 * Car Rear View Reverse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.