I have a Garmin Quest II bought on Ebay for 145.00 rebuilt. Also bought the Outside ANT. I mounted the Black disc that comes with the unit on the Pasenger side of my center console with double sided tape and ran the ANT wire to it. Unit Sits beside passenger window button. Unit talks to you through the 12volt Cig lighter power cable. If you do not want to see the ANT place under PLASTIC bumper, will still work fine