My car info :
hyundai avante 2008

I have electric mirrors without motor and i want to change my mirrors to have that motor
before i going to purchase those mirrors i need to be shur if they are working with my car
sum people says i need an relay to connect mirrors ,and other says i can't connect mirrors with motor with car not support them .
the new mirrors have 7 wire and the current mirrors have only 5 wire
there are an mirrors keys block, supporte an bottom for mirrors in the left side of driver but our experience dont now how it can connecetd with my car
so plz any one tel me hwo?
thank you