Keep the original front USB while adding a hidden rear USB port for a cleaner OEM-style setup. No more messy front-panel cables — enjoy a more concise, neat, and factory-like interior appearance.
Issues with used 187B
I just recently purchased a used 187B, the serial # is 6RD 035 187B. It came with the rear USB hook up.
One issue I'm having is the USB on the head unit does not work with Carplay. I have use the rear hook up, is this normal?
The biggest complaint is audio or microphone does not work with phone calls. I have deleted the bluetooth on the car and tuned off bluetooth on the headunit. I have software 5614 installed currently but when I try to update my firmware I just get a error that there is no playable files.
FYI the USB on the headunit does flash the light on my USB stick but doesn't appear to load anything.
It is very possible that the USB port is damaged. If you don't want to spend any more money, you can loosen the USB soldering and restore the unit's front USB to working for your phone.
