Kinivo BTC450 Bluetooth Car Kit (Hands-Free, AUX Bluetooth Adapter for Cars with Ground Loop Noise Isolator, 3.5mm Aux Input, Apt-X)

Too bad the aux isn't in the glovebox for easy access; this is what I got for my car https://www.amazon.com/dp/B009NLTW60 couple years back. Surprisingly decent audio considering. I guess the back of your radio is a challenge to reach