No Hevac or radio

Can anyone help or advice with this problem. For the last few weeks I have no radio or display on the Hevac have checked all the fuses and even replaced the fusebox as relay 7 looked scorched and so did the fuse box but still this has not resolved the problem. Any ideas from anyone. cheers its 1997 4.6 p38

From memory the Hevac,radio and fag lighter are all on a single feed from one of the BECM connectors.I've seen these fail in the past,all I've done to repair it is to use another key position one feed to switch a relay on,then use that relay to power up another fused feed to the radio etc.You really need the wiring diagram from the rave cd to sort it out.