Leyland Daf 45/130 1992

[Fuzzy farm]

Hi,hope some one can help i have a leyland Daf 45/130 1992 horse lorry the radio in the dash board,and the cigerette lighter by the hand brake(air brake) beside the drivers seat, do not have power ,i have tried tracing cables but they disapear into the wiring loom,i have checked fuses,all ok but none refer to cigerette lighter or radio.any ideas?,or who sells manuals