its under the glove box..its a 10min job to change. couple of screws,twist the blower motor and it drops out for you. dead easy. There's a 'how to' on the corrado owners forum. take the passenger shelf off and its in there.
VR6 is just brilliant...fast,cool and fantastic to drive...you can get well over 30 the gallon on the mototrway and just about 30 around town. Put your foot down and collect the contents of your stomach later!!! Fab car...BUY ONE!!!!
got same prob with my VR6 corr....had the water checked for combustion gasses and its come up positive so sounds like my head gasket is going..so its a warranty visit for me!!!.