Need help for car radio Kia cerato

[Tecdiag]

Hi everybody, please does anyone have seen this model of car radio come on Kia Cerato,it's show only "Tel" on the screen.
model : A-100TDG
part NO: 96120-1M100
thx for ur help

[Argento7]

Hi everybody, please does anyone have seen this model of car radio come on Kia Cerato,it's show only "Tel" on the screen.
model : A-100TDG
part NO: 96120-1M100
thx for ur help

Maybe not code, check radio connector, TEL is a negative input. Check mainboard. Is my idea only