you can mount it pretty much anywhere you want to as long as it has clear line of sight. they origonally needed to go in the back of the roof as in the pic above, but new ones don't matter. i used to install these all the time at best buy and we did most of them above the front windshield and ran the wire down the trim and through the door boot. if you're doing it on your mustang then you can always put it on the trunk lid and just wrap it around the edge and zip tie it to the wires underneath the lid.
2013 F150 4x4 SCrew XLT 5.0L
Midwest Crew #22
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