Unscrew the bullet-shaped head from your stock unit and screw it onto the back of your Traffic Pro. (My car had a bullet with the screw seated in it, in that case, you can unscrew the protruding screw from the Traffic Pro and screw the seated screw into the Traffic Pro.)

You will be carefully sticking this protruding finger into the anti-theft trigger mechanism behind the console when you are done connecting all the wires.

If you haven't got this "finger", Ron Stygar calls it a "Radio Pin". Becker calls it a "Mounting Nub" see also:


The anti theft trigger is basically a plastic piece with a hole in it, and another plastic piece spring loaded with a "trigger". If someone steals your head unit, it pulls the "finger" out and the trigger is released setting off your theft alarm. Even if you don't have an alarm, you have this trigger.

Rich C writes:

Peering inside the cavern, you can see the little cave in which the anti-theft bullet sits

Detail of the cave. What is "RD" or "LD" -- who knows. My guess is it's related to Left Hand Drive and Right hand drive, but I don't really know.

It's a little pita, but you have to do it. In the Z3 you can cheat a little by carefully opening the flap on the passenger side of the console and reaching behind the head unit to guide the finger into the hole. My anti-theft looked like RichC's but the trigger had fallen apart. Shawn Fogg actually put it all back together, it kind of snapped together.

Be careful as the flap opens, it scratches the glovebox as it slides by. Use a magazine or something to let the flap slide by without rubbing the glove box.

6

Traffic Pro Basic Install Pages
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Page 1- What are you installing~~ Page 2- Parts Needed ~~ Page 3- What's in the Box? ~~ Page 4- Mounting ~~ Page 5- Plug It In ~~ Page 6- Anti-Theft/Finger in the Hole ~~ Page 7- Wiring 2 Wires ~~ Page 8- GPS Antenna Placement and Routing the GPS Antenna Wire ~~ Page 9- After it's Connected
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Traffic Pro DIY Owner Install Instructionsts