Hey, Rory. Quick question for you. I just finished adding a USB power supply to my cig lighter and plugged the USB charging cable into it. After doing so, a rather obnoxious squeal is now present. When I remove the USB charging cable, the noise goes away. The iPod delivers music regardless of whether the charging cable is attached or not, so the charging cable is the culprit. Do you think an RF filter would suffice to suppress this noise? I believe I can acquire one from my auto parts store, but would like your opinion.RoryW said:Hi Randell,
As I mentioned when uou purchased from eBay, you purchased an E46 product which is why you got the 10 plug
Our Z4 products come with 12 plug or BMW crimps if the car has Bluetooth or nav. The USB is purely for power supply yes, we were looking into other functions in future products and then Apple moved from 30pin to 8pin which is so limiting due to authorisation chip.
The part I am considering is this:

Thanks,
rj

quite why i thought they were one piece 