basic amplifier install $150

150+ you need wire sized for the amp $40-199 depending on quality and length .  ofc recommended not cca you can use it but i dont. wire terminals,  fuse for power wire to prevent a fire absolutely necessary.  ground same size as power but short as possible and remote turn on which if you're using factory head you won't have remote or rca input so you will need an loc (line level converter ) that will convert your speaker wire into rca and remote they run from about 40- $200 depending on number of channels brand and signal quality.  I will match or beat any quote from any shop doing it right 150 basic you have everything 150+ if I provide and that depends on what your running.