Hi....new here. I have an early 2015 2500 hd Diesel ( pre 8/14). I have black camper style mirrors with glass turn signal, power adjust top and defrost ( heat). I bought upgraded new style mirrors. No power fold and no temp sensor since pre 8/14. My question is, is the only harness I need is the rzy harness to make cargo and running lights work? My new mirrors came with puddle lights but they have a separate wire for them. Is there a way to wire into existing plug for those? I just checked my harness and I have a pin in #3 and #41. No pin in #9 or#11. I assume I can connect my puddle light to wire on #3. TIA