Well, isn't this just the slick little mod!
$5 @ Radio shack got 'r done for me. 300K resistors are hard to find but using two common 150K resistors in series works just as well. I'm using 1/8 watt versions in my "Frankencable". Also, the 4 pin mini power connectors on PC floppy drives work perfectly with the stock BMW connector supplied in the 2003 and > vehicles. Got an old PC laying around? Just unsolder the power connector from the floppy drive and use it for this mod.