Hi, I just bought my gps and have read the read me file and the first part of the bt manual. I didn't see anything about the box contents. I got the holux receiver. There is a compact flash card, a cd of docs, the receiver and case, and two chords. One of the power chords I think charges the receiver. The other chord has an end that is sort of large and looks like a small microphone. What is this? I don't think it is the receiver because I found it in its case. Am I missing a chapter on puting all the parts to the proper use? Any help would be appreciated... Thanks, Judy