I got a quote for 2 12 inch kicker cvrs, a pioneer in dash head unit, a capacitor, a 2000 watt amp, and a basic viper alarm for $1850. Good price?
Online kicker cvr are about 90$ each, a box for 150$, a wire kit for 100$, a top quality pioneer deck for 220$, a 2000 watt amp for 300$ and a basic car alarm for 75$ a good alarm for 200$. That's about 1300$ in supplies and parts and 500$ in labor. Don't get the cap, it doesn't do anything unless it's the ones that look like metal boxes and cost 500$. Realistically online with 1800$ could get you a huge bang for your buck.
