2012 Ram ST with blinker & puddle light mirrors
I also have a 2012 Ram ST model I have the regular power & heated mirrors. I wanted to change them to the RT mirrors with the led blinker and puddle light. Asked the dealer at first they said "the wiring harness is different then the PCM need to be changed". Ended up just none of that was a problem there all wired the same just had to change some VIN codes on the PCM from the factory and they work just great.