I have recently purchased a new company car CLS305cgi but without command aps but instead aps50 (budget). I would like to get Command APS installed with the intention of taking the Command APS unit out from my current E class w211 and installing it into the CLS and installing the CLS's APS50 into the E Class. Simply, just swapping the navi systems between the two cars. Does anybody please have any instructions on how to do this. The internet urgently needs one as many people (maybe just me) are asking on various forums (german). I would pay for the information. Unfortunately my MB dealership says its impossible to do and would be too costly if it were...hmmm. Im willing to install it myself and have them do any reprogramming that might be needed.