OK, here we go: Smart people will disconnect their batteries before messing about with splicing wires:

• Parts needed- really only a few things for the Z3 install:
  • 1- You need whatever it takes to remove your current head unit,. If that is the stock BMW unit, (the "Business CD" player) then you should use the special "star" tool to loosen the bolts. A hex wrench will strip the insides of the release nuts. Store the star tool with your stock radio, you won't be needing it any more.
  • 2-Whatever you do to splice wires, you will be doing that twice, once for the speed wire and once for the reverse lights wire.
    You can splice into your car's wires, or you can make a pin for the wire and put it into the plug.
    Most people get this pin:BMW p/n 61 13 0 007 452
    
    (pic from Ron Stygar's page) PIN PART NUMBERS MAY VARY according to your model and year. Pin part numbers may vary even in the Z3 line by year.
    Needlenose pliers
    Soldering iron and solder
    
  • 3- Whatever you need to fish the antenna wire through the dash and to fish the reverse light wire to the reverse light plug. Like a wire hanger. (Non-Z3 cars who have trouble getting to their reverse lights can skip doing that one, it just lets Traffic Pro know if you are backing up.) Z3 owners need only a flat head screwdriver to nudge the vents out of the dashboard and a phillips head screwdriver to take the screws out of the flap by the console. (Again, please email me if you can tell other models how to do this, I will add the info.)
  • The correct adapter cable from Traffic Pro to your BMW model. Non-BMW models have another harness altogether.
• Really, the parts needed are minimal- for a Z3 install anyway.
  
  
  Photo- Jon Trudel
  
  Summary Parts List:
  • Star Removal Tool (for Z3 stock head unit)
  • Needlenose Pliers
  • Soldering Iron and Solder
  • electrical tape
  • voltmeter
  • BMW p/n 61 13 0 007 452
  • Wire hanger - flexible wire
  • Flat Head Screwdriver
  • Phillips Head Screwdriver
  • Harman/Becker adapter cable for US BMW Traffic Pro
  • Magazine or clean paper
  • See "Ins and Outs" page for more parts you need to add aftermarket audio gear and telephones.

Everything else is in the box!

2

Traffic Pro Basic Install Pages
~~~~~~~~~~~~~~~~~~~~~~~
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
~~~~~~~~~~~~~~~~~~~~~~~
Traffic Pro DIY Owner Install Instructions