Hey guys I have a 98 bmw e39 523i. I was trying to code the 'us corners' with NCS EXPERT with no luck, then ordered the pa soft cable, trying to get into the coding menu of LCM it displays error message with 'not avaible for this coding index, yet!'. Does that mean my LCM is just too old and not programable? Secondly, if I decide to upgrade it with a newer one is it just plug and play or what do I have to consider? Year, model etc? Thank you for your answers!