Installation was a PITA, I spent a lot of time installing sender units & running wire. The electrical connectors gave me intermittant troubles & I've had to replace them. The same type connectors are available at NAPA & probably no better, I used heat shrink solder crimp splices.
The speed sensor buffer will not like the output from the Cyberdyne dash (orange wire). Disassemble the original dash to enable you to use the original speed sensor. Put the speed sensor in a protective box, platic bottle, jug, whatever to prevent the moving parts from accidentley grabbing a wire or whatever under the dash - I used one of the boxes packed withe the dash for one of the sensors. Place the speed sensor in its original location (behind the Cyberdyne dash) & hooked up to the original speedometer cable. Put the Cyberdyne speed sensor in the speedometer cable where it is joined (close to the PM). If you don't want to do this type setup & use the orange wire from the Cyberdyne dash, the speed sensor buffer will not give good readings to the ECM (tranny shift points will suffer & the Scanmaster showed up to 150 mph when travelling in traffic) - you'll also experience the cruise controll acting up & not wanting to hold a steady speed (I experienced a cruise control "hiccup" or the TR jerking intermittantly).
Once I finally got all the bugs out, I like the dash - it put almost all instruments needed on a TR where they belong & they can all be calibrated.
I haven't got the fuel gauge correct as of yet, due to the original piece of junk Buick fuel tank sending unit needs to be overhaulled.
HTH
