On the Insignia products support website, where exactly do I click to find driver downloads for my specific model?

Setting up my Grace Digital GDI-BTAR502 to work with my TV was a bit more involved than just plugging it in, because I wanted the TV remote to control the volume through the amplifier's audio return channel. The user guide covers the basic Bluetooth pairing, which is easy, but I needed the advanced setup instructions for the optical input and remote programming. This manual, https://grace-digital.manymanuals.com/audio/gdi-btar122/user-manual-35499 grace digital gdi-btar502 set up manual, actually covers both the 122 and 502 models. The key for me was on page 5, which details the optical and coaxial input connections. After connecting the TV's optical out to the amp, I had to go into the TV's audio settings and change the output from PCM to something the amp could handle, and then program the TV remote using the codes in the manual to control the amplifier's volume. Now it's a seamless part of my entertainment system.

Thanks for the help setting up the Grace Digital GDI-BTAR502! I had it connected via Bluetooth but couldn't get sound from the TV. Now I'll figure out the optical input.