Hi -- the pin layout looks different for the EP26. My relay matches what centerline and vics sells for the S4 (pic attached). I was originally hoping for something to just plug in to keep the car mostly original looking, so I skipped the resistor path. There are also 1157 LED bulbs with built in resistors, but they are pricey and the ones available via Amazon are now labelled 'unavailable'. For now I just replaced the burnt old bulbs with new long-life standard lights.