I am new to this forum, never owned an Audi. Here is my question.. Someone has a 2008 Audi A4 convertible for sale but stated it needs the comfort control module. Seems that this unit controls pretty much all electronics in an AUDI by what I have read. Is this easy to get and DYI install? Would not want to get into something may sound easy but a nightmare after if I decide to pull the trigger. Any help/advice is much appreciated.