When Villanova-based Maddie Jones, 16, and sister Nell Jones, 18, go cruising in the family Subaru SUV, they may start out with a taste of 104.5 or Q102 pumping through the cabin. "But when the first" (of four, five, or even six) "commercial comes on, we are so out of there!" said Maddie. Just hopping down the FM dial won't do, "because other stations have their commercial breaks at the same time" (typically slotted at 20 and 40 minutes past the hour, for "quarter-hour" rating maximization). And the Jones girls seldom feel desperation to go back "because those stations play the same songs over and over," Nell said with a groan.