Hello everyone! Just a quick question, I have a Audi A3 8L1 (1999) 1.6 and has the knob heaters, I believe they're called HVAC? And was wondering if it's simple enough to pull that one out and upgrade to a LCD climate control screen, just a simple swap? My car doesn't have air conditioning or anything like that. If it is possible, what needs to be done? etc. Many thanks.