I have searched through all the forums for this and come across similar problems but all are slightly different and the cures have not solved my problem. I have a "01" DHSE P38 wjith the harman kardon sound system and satnav. The satnav screen illuminates but is blank, the sound system does everything it should but no sound, on further investigation the amplifier in the rear behind the trim and sub woofer does not seem to be getting any power. I have checked all the fuses and all are OK. There is static coming from the speakers at a low volume. I am not particularly concerned about getting the satnav working but I do want to get the sound system working. I wonder if anybody might be able to shead some light on the problem or suggest a cure?