Received the box today and did the simple slap on job. Just removed the shaft to the exiting antenna then used some tape to mark off where to stick. Cleaned the area around the antenna as well just to be safe!
Verdict: Radio still works, fin looks like it came with the car. Well perhaps it's a tad larger than a civic might need but the bigger the better right
As for the tech there is no connecting wires. Just place it so the sides of the fin don't touch the antenna stub.
Some pics: (If you can't tell it's the same color, the curved shape makes it appear darker than the car in weak light)
