Mondeo with sony 6cd 132 problems?

Hi, i have a sony 6cd 132 radio in my 05 mondeo, help needed with 2 faults please,
Firstly, when I go over a bump there's BAD interference on the radio, not when cd playing though, what is the problem area please,
Secondly, came on suddenly this morning, suddenly the front illumination has gone really dim, the words etc are there but not bright enough to read, help again please, Thank-you