Features:<br />Application to most of the DVD navigation with direction control function.<br />Can be installed quickly &amp; improve driving safety probability. <br />A total of 10 keys can be customized to set the function.  The keys with LED light, you can also see clearly at night.<br />Installed without removing the original steering wheel can avoid damaging the steering wheel.<br />Button on the side can avoid the incorrect operation which caused by hitting the steering wheel. <br/>Installation:<br />1. Remove DVD navigation.<br />2. Finding out multifunctional steering wheel control line, ACC line &amp; ground line from the navigation host tail lines.<br />3. Stickers on receiver shows the specific line, ACC is ignition line, GND is ground line, KEY1 &amp; KEY2 are direction control lines, please connect all the lines according to instruction. If there is only one direction control line in the navigation host, please connect the green &amp; white line to navigation.<br />4. Finding multifunctional button learning interface (steering wheel settings) in the DVD navigation settings.<br />5. Enter into Android or DVD navigation, matching the button, it will takes about 10 seconds to pair. If match successfully, you can see a red light from the receiver.<br/>Specifications:<br />Color: Black<br />Material: ABS<br />Product Size:10*3cm/3.9*1.2in<br />Package Size:16*10*4cm/6.3*3.9*1.6in<br />Package Weight:127g/4.5oz<br/>Package List:<br />1*Receive Box<br />2*Ten Button Keys<br />1* power cord(set)<br />2*screws(set)<br/>Note:<br />1.In order to avoid to be interfered by some of navigation and get better reception, please straighten the receive antenna as close as possible to the steering wheel.<br />2.When pressing the button, please guarantee the time will more than 0.5 seconds, if not, the key may not be identified.<br />3.This product need installed by professional, we will not bear any responsibility for the bad consequence which caused by your own unauthorized installation.<br/>