jonbmx900

hi all im a new member on here and just brought a c5 exclusive with the built in sat nav etc my problems are the display only comes up wit magnet marelli (upside down) mostly lit dim sometimes brighter the radio comes and goes and obviously cant see what im tuned in to I cant see any of the sat nav or fuel computer displays I cant tell what temperature or where im directing the flow of air ie face screen feet etc I quite like the car and would like to get the faults fixed within price reasons I would be really greatfull for any ideas or input thanks in advance jon