An above-average sound system will cost more than average.
roughly 2317.95 plus tax
"Average prices on each component thats good would be nice"
That just sounds like you're asking someone to do the research for you. You're not going to get a friendly response with that.
Find the median cost, and add a penny.
1.9in x 2.9in -- 47mm x 73mm
30 Digital Outputs -- Directly drive a relay
15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
Buy now in the MP3Car.com Store
Best way to find your answer, go to a local audio shop. listen to their stuff, ask for a quote.
Your question is about as good as
"I was wondering how much a good place to live costs"