I was really curious if a CTS-V cluster could be installed in a regular CTS and I got my answer today. We bought this 06 CTS Sport last year and although it had every option but Bose and Nav, we have been steadily changing that.
If you have the 18" wheel package (with the better grille, sport wheels, exhaust, spoiler, HIDs, limited slip, etc) you cannot get navigation because then there is no readout for the tire pressure monitoring system. We added navigation anyways, anticipating being able to recover the tire pressure readouts once a V cluster is installed.
Today I added the CTS-V cluster. Basically, there are a few issues that I am still figuring out but so far it's GREAT!! I had to add a ground and signal wire to my cluster connector for the DIC controls. There are also inputs for trans and oil temp that I don't have and I'm not sure what I am doing about them for now. The other issue is the steering wheel controls. I -think- what I am going to do, since I don't want the V wheel, is to use the 1 2 3 4 buttons and change their resistors to correspond to the values needed for the cluster DIC, and run their two wires to the cluster instead of the radio. I never use the steering wheel controls for anything but volume anyways, I always thought the programmable 1 2 3 4 buttons were dumb.
To test it out I hooked the CTS-V wheel's buttons TO the wires coming from the cluster that I added and I was able to scroll through the screens. Then when I was done playing I left the DIC screens where I wanted them (tire pressure on the left, speed and odo on the right) and then tucked the two wires under the dash for now until I get the controls figured out.
-Trans temp and oil temp are dead, as I figured.
-When I put it in DRIVE, on the right DIC screen it shows "M5" next to the speed. What the heck?? And the tap shift function (which I never use) doesn't indicate what gear you are in anymore, like it does with the original cluster.
-The tachometer -might- be off, but I'm not sure on that one. Does anyone know if a tach filter would fix that problem? (inline resistor or whatever it is)
I also swapped the cluster face/bezel so that I still have my chrome rings around the gauges, as you can see, rather than the matte finish silver that doesn't go with a non-V.
I'm curious if the G-force meter will work!!! I have Stabilitrack so I don't see why not, but I haven't really taken it for a spin yet so I'll keep you posted there.