Which speakers can I add to rear door? 2023 CX-5

Hi, thank you for reading. I recently purchased a Mazda 2023 (non-Bose), and the car is great, but two things bother me: the seats are a little too small in the leg/thigh area. I started to notice this on long trips. The other issue is with the speakers.

I'm here to ask about the speakers. I checked crutchfield.com and based on their info, there are not many options to choose from when replacing read door speakers. They only recommended Kicker 43DSC6704 as a 2-way speaker. I heard some people installed other speakers that have more "mounting height", since that is the main issue.

I wanted to replace the tweeters, front door, and back door speakers without the amp or sub. I'd appreciate it if you could recommend a setup and whether or not adding an amp is worthwhile.
Thank you!
 
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