Having feed back problems with the rear amps.. Suspect that the REM is the culprit. Can a used module be just plugged in ? According to the 3000 plus page factory shop manual, the information in it must be down loaded into a dealer computer, then uploaded into a NEW ? unit. What about a used one since new units are not available.

 

I believe fellow member Jon89 is the most knowledgeable owner on the REM. I believe he purchased a used one and had programmed at an independent shop on his prior 2005 S Type.