What do you do when your baby hates the carseat? He would cry and scream every time we put him there. Any tips?

Does baby sit alone back in the passenger seat alone? If you are travelling with your partner, maybe one of you can sit behind with baby and distract baby with songs or a soothing voice. If you are alone in the car with baby, maybe get one of those toys you can attach to the car seat as a distraction? One of my friends have one of these car toys and his son loves them.