Some pictures of my installation:

First I installed the sensors using the included malleable brackets. I actually lost one so I had to improvise with one of the passenger side brackets. I later painted it black to hide it better.

I then ran the cables through the driver's side engine compartment and into the area underneath the brake master cylinder.

I drilled a hole through the grommet under the driver's side kick panel and ran the cables into the cabin.

I ran the power/ground cable under the center console and then tapped the harness to the lighter after removing the carpet panels on both sides of the console.

After that, it's just a matter of making all the connections and finding a location for the box with the integrated speaker and for the power switch. I chose to put everything on the kick panel well out of site, but with the power switch easily accessible.