I mostly lurk this site, but I have to say that TT rocks! There's been a bunch of posts lately about the TrailTech Vapor that inspired me to buy one after I crushed my computer on the trail a few months ago. My dashboard lights were crushed, too-- so I bought the Trailtech dashboard that surrounds the Vapor. The dashboard wiring is a little confusing, but after searching this forum for a wiring diagram, I found exactly what I needed. I cut the factory dashboard wiring above the waterproof connector so I could splice everything in and still unplug it at will. The factory connector has 8 wires (I think), but I only needed 6 of them to wire the Trailtech dashboard. It really doesn't matter which color wires are used on the supplied dashboard lights (each light has 2 leads). These are the colors I used, followed by the factory wiring harness colors (the important ones), and the dashboard light each controls:
orange---------> orange/green = neutral indicator (+)
green----------> blue/black = neutral indicator (-)
blue-----------> black/yellow = high beam (+)
black----------> black/white = high beam (-)
light green-----> light green = right blinker (+)
black----------> black/white = right blinker (-)
light blue------> black = left blinker (+)
green---------> black/white = left blinker (-)
Note that 3 of the dashboard lights share the same ground wire. Since the Vapor computer has a programmable warning indicator for the engine temperature, I saw no need to wire the idiot light from the original factory dash. And, since the left/right blinkers are separated, there's no need to use a diode in the dashboard wiring.
Someone on this thread mentioned trying to figure out a safe place to run the speedometer sensor wire. I didn't like the tight fit of trying to run the speedo wire through the brakeline guides, so I decided to remove the stock speedo bracket (mounted to the right side of the front fender) and remount it to the lower triple clamp on the left side. It allows the cable to move up and down freely and doesn't interfere with my Unabiker radiator guards at full steering lock. Down at the bottom of the fork, I used a standard wire clamp to secure the speedo wire and keep it from pulling out of the magnetic speedo sensor mounted to the caliper.
Here's the stock computer bracket I cut and modified to mount the Vapor computer:
Here's the finished product:
And here's how I mounted the speed sensor:
I like everything about the Vapor, except for two things: (1) it has only one trip odometer. I like to keep track of my mileage on every tank with one trip meter, and use the other one for other stuff. And, (2) the dashboard indicator lights are not bright enough to see in full sunlight.
Things I like most about the Vapor: (1) Cool blue backlight, (2) Engine temperature display (I used the M6 direct bolt-in on the left radiator), (3) Tachometer, because it's just cool, and (4) I got to keep my stock mileage thanks to Trailtech entering a code to adjust the total mileage before I mounted it to the DRZ.
Mostly, I like this site for the wealth of shared knowledge which made this an easy install.