That's pretty spiffy! Is that your project? Where can I learn more about it?

Regarding the steering, good point. I'm not entirely sure that the pictured box is the one for the Sierra. No matter which option is chosen on the drop-down menu, the picture remains the same. One of the reasons I was hoping for some "Been there, done that" experience.

Thanks for the reply! If you know where I could learn more about that modified box it'd be great! It actually looks like a pretty simple mod!

Peter