I have a '93 Jaguar Vanden Plas that has been exhibiting what I believe are some electrical problems. For no particular reason, the radio, climate control, and left/right power seat adjustments lose power. I've check all the fuses and relays, but to no avail. This can occur when I start the vehicle, or just randomly when I'm driving. One minute I've got power to these items, the next I don't--and then it comes back on again (or doesn't). It seems as if it's getting worse. I've removed the radio/climate control instrument board, looked at the connections--they look fine. Any suggestions/help would be greatly appreciated.