Radiolink Pixhawk LiDAR Lite V2 7/2015 issue

I cannot get the Lidar-lite V2 DOM 7/2015 to work with either of the two Radiolink Pixhawk units I’ve purchased. I purchased a second unit to see if the issue is repeatable, and it is. I’ve tried PX4_PWM and I2C routes neither of which will work. I picked up a cheap Pix Clone from Bangood a while back and it works perfectly, after solder job touch up. Anyone have any experience with Radiolink Pixhawks?