ROANOKE, Va.--(BUSINESS WIRE)--Advance Auto Parts, Inc. (NYSE: AAP), the largest automotive aftermarket parts provider in North America, serving both professional installer and do-it-yourself customers, today announced its financial results for the first quarter ended April 25, 2015. First quarter comparable cash earnings per diluted share (Comparable Cash EPS) were $2.39, an increase of 6.2% versus the first quarter last year. These first quarter comparable results exclude $0.11 of amortizatio