This is a Great addition to our RZR. We just bought a 2021 RZR XP 1000 Premium with Ride Command and the MB Quart door speakers. I was really excited about having these MB Quart door speakers because I know the name is of good quality. I didn't even play with the stereo until I got the new RZR home. To my dismay, it sounded like crap. The next day I went onto the Crutchfield website and found this kit for my RZR and ordered it. As I was installing it I noticed that the amplifier that came with the RZR isn't even an MB Quart amp but a Rockford Fosgate that I couldn't find any info on. I don't know if this is normal or not because Polaris wont get back to me. Anyway, the SSV Works/Kicker RZ4-3KRC works very well and mounts perfectly. I thought the speakers might get in the way of my size 14s but not at all. I left the MB Quart door speaker plug into the Fosgate amp and they're working as a bit of fill like you'd use rear speakers for.
Pros: Fits very well and easy to install.
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