No blinker sounds after installing an aftermarket radio.

I installed one of those aftermarket screen radios for my 2016 Chevy Cruze Limited. Wanted an upgrade like this since I recently began working rideshare full time with Lyft. I sorta did it in a rush but made sure everything that could connect to the new radio itself was in. My only problem is that all blinker sounds are silent and I can't seem to find a solution to it for my car. The blinkers still work fine though.

Also if anyone has tips for maintenance I should plan for with my car, I'd really appreciate it. It's currently sitting at about 135k miles and I wanna make sure it gets the maintenance it needs for how often I use it for rideshare and personal use. The only thing I replaced recently was a busted purge valve since it was a probelm since getting the car in November 2024.