Charlie I have the SRX. I mounted the mute switch on the tunnel by my right thigh. Need to move the seat to the furthest forward position you will use then place it fwd of there to miss the seat belt. I placed the LED right behind the Air Bag light on the console. Leave room for the console lid if you choose this location the lid cantilevers a bit in the front. Need to plan what is best for you before you start.
Charlie, I just got done wiring my in. I just use some phone cord wire. The detector has a mute button on the face just to the right of the display. I also increased some of the settings to help eliminate the false readings. As for install the wires can be pushed between the window and headliner and the A-pilar just pulls out for easy routing.
The easy way is to access power from your mirror, I thought that I had the guys e mail address that was making a simple little tail that pushes into the back of the mirror for a power scource and the other end plugs into the Escort. Very clean set up and take no more than 30 seconds to install. He makes them in different lengths depending on where you mount your detector. I'm sure one of the others guys on the forum has his e mail address or you can search the archives to fine the thread that was showing pics of the install a couple of months ago. Very clean installation.
I had 'em run a hardwire kit up the pillar and across to the mirror when my stereo was installed. Invisible until it comes down above the mirror. Mute switch? I just press the main unit's if I need to.