It mounts magnetically to a small metal piece you double-sided tape to the dash. You set it up so you can see the HUD in a desirable spot on the windshield, where you apply a small piece of reflective-ish tint stuff. It uses GPS satellite signals to give you a pretty nice readout in MPH or KPH as well as heading (N-S-W-E and the in-betweens).
Here's pics of it, and of my gauge install: boost and oil pressure (both mechanical) mounted in-dash, mini-tach in the place of the stock (useless) temp gauge in the cluster, and Water temp/Vols/Oil temp gauge (with fan controller option and alarms) fitted in by deleting the cruise control buttons and power mirror switches and moving around the anti-theft LED and dimmer switch. Beside the hazard lamp switch, on the left is the foglight switch and on the far right is a manual override for the cooling fan I wired in.





And I washed and did some claybar and waxing on my tired old paint yesterday, as well I used some pure silicone oil to treat all the rubber weatherstripping and the door handles and mirrors (it ran a little in the rain though....I wonder if it hurts clearcoat?) so some pics of the car as it stands...before I finish drilling for the hood pins and ruin that clean clean hood. Ah well. Rather have those pins than a wrecked hood and an accident.



