I once fitted a cheap dash cam to my old car and that killed the signal getting through to the dab radio.
Another thought is your dab radio original to the car.Does it the have a stick on Ariel that's fixed to the windscreen, a usual give away it's not original.
If it has the next question does your car have an electricly heated front windscreen.
If it does the combination of that and the window mounted Ariel will more than often stop your radio from getting a decent signal.
Another thought is your dab radio original to the car.Does it the have a stick on Ariel that's fixed to the windscreen, a usual give away it's not original.
If it has the next question does your car have an electricly heated front windscreen.
If it does the combination of that and the window mounted Ariel will more than often stop your radio from getting a decent signal.