hi matt got mine top of back window and one on drivers rear..........
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..ST lover..06 colorado red..st badge grill..cc jets/bootlock..side stipes removed replaced by st150 stickers..de-tangoed....flat rear wiper.ice white lights/spots.number plate.lowered 35 mm.. and its for sale ....
Putting it near the bottom above the wiper blade sounds a good idea. Alternatively, quite a few people have done the same as Rob and put it at the top of the window, just beneath the brake light.