Hi Guys
I have just bought a genuine RNS510 from a guy on Ebay (good reviews and good feedback)
Come to fit it in and nothing works, SD Card will not read, CD/DVD will not read, DAB does not work, neither does bluetooth (i may need a module for this??)

Does this sound right?? Am i being stupid?? or does this HU need other parts??

Was described as in perfect working order.

Any help would be greatly appreciated