How do you pronounce the acronym AKA (also known as)?
I pronounce it ay-kay-ay /ˌeɪkeɪˈeɪ/. Or I just say, "also known as".
I say A. K. A. (like Reg posted at the same time) http://www.macmillandictionary.com/dictionary/british/aka
"AKA" is an initialism, not an acronym. Acronyms are pronounced as words (i.e. SCUBA); initialisms are read one letter at a time. Initialisms and acronyms are types of abbreviation.
I pronounce it "acker". (Silent R of course.) Simple, quick, just like how I say "fack" for FAQ.