I am afraid that I could not do both. They are in different places. I want to audit in one or two Ph.D level courses in the university in which I am interested. If only one plan can be chosen for this summer. Which weighs more?
check whether the prof. of the summer courses are actively doing high-profile research (personally I doubt that)
if they are just adjunct prof., forget about it, unless you want a finance course appears in your transcript (and in this case u need to register not audit)
also, audit at least master-level courses, if it is a undergrad course, no use