I've been trying to troubleshoot an LI Quad setup connected w/ the Cheetah Wireless Fitting Kit. Today, I did the simple step of hooking up the power wires coming out of the LI CPU box to the car battery terminals --- no cheetah wireless kit in between. Upon starting the car up, there was no welcome message from the box speaker (even though the volume screw was cranked to the max and I checked that the jumpers inside were set to internal) and the unit did not make any noise when I put my hand in front of either front laser.
Anyone run into this before? Do I have a broken CPU box?