What is Reddit's opinion of Bluetooth Car Kits, SAMMIX Bluetooth 4.2 Receiver, Hands-Free Car Audio Adapter for Phone Calling and Music Streaming with 3.5mm AUX Input and 3.94ft USB Cable?

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Sorry I should've clarified but I'm keeping the stock head unit in the car, it has an AUX input so I'm looking for something like this kind of receiver.

Damn. The bots caught me!

Thank you! It's a 2019 Galaxy Tab A 8.0". Here's a closer picture. I previously had a Nexus 7 installed, but it was showing its age. This is how I mounted it. (See last image). With the new tablet, I actually just mounted the plastic card directly to the back.

I also have it pair with a Bluetooth -> Aux converter. I bought this one on Amazon, and the sound quality was much better vs previous ones I've tried.

Bought one of these a few weeks ago. Connects automatically and I can't tell any difference is sound quality.

https://www.amazon.com/gp/product/B07DFKGWGM/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1