I would like to know if 2003 mirrors work on a 2002.

I all ready have power and heated mirrors on the truck.

No turn signal option?

yes

I do have the power and heat option put no turn signal.

I have a late '02 1500HD and there was no turn signals mirrors until 2003, so the mirrors will mount just fine, but you would have to wire the signals to the mirrors it you would like them to work. I thought about putting them on mine as well, then I got lazy, I work on cars everyday and don't want to work on mine, LOL