Triple Pulse Extreme Accuracy</br>No Programming?? Just 3 Wires Install</br>To Work for All Future Updates of Software That Will Be Released</br>Internal Flashing Led for Correct Install</br></br>Product Description</br></br>Newest Technology Microchip-Controlled and Guaranteed to Work! TRIPLE PULSE EXTREME ACCURACY NO PROGRAMMING?? JUST 3 WIRES FOR MOST DVD UNITS ( 4 WIRES FOR ALPINE UNITS) INSTALL!!! TO WORK FOR ALL FUTURE UPDATES OF SOFTWARE THAT WILL BE RELEASED This removes the annoying handbrake lockout feature most radios have This product is compatible with all 2017?? 2016 and earlier Pioneer AVH?? MVH?? DVH?? and AppRadios (2??3??4) video units AVH-4200NEX AVH-4201NEX AVH-291BT AVH-X391BHS AVH-290BT AVH-190DVD AVH-X491BHS AVH-X390BS AVH-X490BS AVH-180DVD AVH-X1800S AVH-180G AVH-280BT AVH-X2800BS AVH-X3800BHS AVH-X3800DAB AVH-X4800BS AVH-X5800BHS AVH-X6800DVD AVH-X7800BT AVH-270BT AVH-170DVD AVH-X1700S AVH-170G AVH-X2700BS AVH-X3700BHS AVH-X3700DAB AVH-X4700BS AVH-X5700BHS AVH-5700DAB AVH-X6700DVD A