Installed a new radio and well now everything's funky. The key fob stopped working entirely. Pushing and holding the alarm button does nothing pushing unlock lock buttons does nothing, and holding the trunk button does nothing. Play (key fob does have a good battery) I tested a secondary one also didn't work. Manually locking doors with any of the buttons on the inside does not do anything. None of the buttons work or even make noise Button lights do not work. All of the lights on the door lock buttons do not light up and the buttons on the stereo and steering wheel don't light up. Glove box light is always on when the car is on. Closing the driver and passenger door makes a clicking sound and unlocks the door two times even if it's already unlocked. Turning off headlights does not work when the car is powered on turning the headlight switch does nothing. Radio controls on the steering wheel no longer work.

Also The alarm system no longer works.

Everything else about the car functions perfectly fine it drives find headlights work, blinkers work etc It's just all that stuff that's being weird.

I'm just trying to figure out what exactly could be wrong before taking it to a shop and potentially spending hundreds of dollars on something that might just be super simple.

Thanks in advance