Review on 🚗 Yomikoo Bluetooth Car Kit with Wireless Hands-Free Music Adapter for Toyota Avensis Corolla Highlander RAV4 Yaris - USB AUX Input, Bluetooth 5.0 by Bobby Aghetoni

Probably the best upgrade you can buy for an old Corolla. Upgrade your factory radio for half the price of a replacement head unit at a major store. Audio is crystal clear over Bluetooth on my iPhone SE. Bluetooth connects about 5 seconds after the engine starts and the connection process is straightforward. I have yet to try the auxiliary input or the USB input for a flash drive, but as far as Bluetooth goes, that's all you need.