Originally Posted by grneggz
This is what I was looking for. Now, if you go to the link for the BMW adapter plug/switched power cable it shows the GPS plug wired directly to it. My GPS has a power converter that reduces 10-30 Volts DC to 4.9-5.25 Volts DC. I don't have a meter. Do any of you know if the Canbus port is already reduced to the lower GPS power requirement? If it its I can eliminate the converter, if not I have to use the converter. Thank You.
That will work for sure, but you can get a whole box of vampire jacks at Walmart for $1.29. I forget the official name for vampire jack, something with "connection" in it.