Best value-for-money car audio + infotainment under ₹15k for Baleno base?

We went with the base model of the Baleno because of our budget constraints. As expected, it doesn’t come with many built-in features or accessories.

Now we’re planning to install some aftermarket upgrades like speakers and an infotainment system. However, our current budget is limited to around ₹15,000.

What would you recommend in this price range for a decent, value-for-money setup? I know we can’t expect top-tier quality at this budget, but we’re okay with starting basic and upgrading gradually over time.

So please do recommend something for us.