My negative battery terminal connect got corroded and needed to be replaced. I worked on it and the car lost power and I jumped it a couple of times. After that, my radio gets power, but the screen is fuzzy and no sound for the car is work, but everything else works on the car. I changed fuses, no difference. I just had the negative battery terminal cable replaced with a new cable, thinking that it was not grounded properly... but still the same-- Display lights up-- but fuzzy, but no sound. Could the radio have shorted out? Anyone seen anything like this?

 

Did you ever get a solution to this ?

 

No-- No resolution. I got a recommendation from a friend to take it to a auto accessories installer, (radio, auto starters,) they are more versed in dealing the the electrical of the car.