What speakers will fit?

Originally Posted by Quicksilvers

I wanted to know what speaker size fits in a 2017 Nissan 370Z Nismo? Speakers being replaced will be the two front door speakers, two dash speakers,two rear side corner behind the seat speaker. I was told the door speakers are 6 1/2",dash speakers are 1" tweeters,and the rear side corner behind the seat speakers are 3 1/2". Speakers being considered are Kicker KS series speakers will they bolt right in? Do you need adapter spacers for the front doors using Kicker KS series 6 1/2" speakers or will they bolt right in the doors? Are there subwoofers in the rear of the vehicle?