Audiovox cruise installed - top speed is 68 mph???

[rgnprof]

I got the Audiovox system installed and wired thru my stock cruise switch on the steering column. Took it for a spin and it works fine - with one noticeable problem.

The top speed it will hold is 68 mph... No matter where I set the cruise it drops down to 68 and then it holds fine. Really does a nice job holding the speed pretty constant, but I can't figure out why it only goes to 68 mph??

I am attaching a picture of how I hooked it up to the throttle at the valve cover - it is actually hooked up exactly like the stock cable, but I'm wondering if I have maybe restricted the length that the cruise cable can pull the throttle open??

Anyone got any ideas?

ryan