I have a ZR3 on a modified 1967 MGBGT and am wondering about what you guys think of it's effectiveness with today's lidar technology? Should I abandon it and buy a new ZR4? A friend was moving my ZR3 from my old Jaguar and, like a moron, cut the cable connecting the front units to the main junction. Where is a good place to get a replacement cable. Thanks in advance for your help!