Originally Posted by dukeandtheland
Really the confusion is that the instruction / picture says if just for fiber optic cables, the other parts is not needed.
Now as you said, both parts are needed to reolocate the OEM HU. So which one is right?
Srcstc is correct, if you just want to get rid of the SOS error, you don't need the can low and hi, but if you want to power the radio and use it for software updates, you do...