Radio, CD Player and Sat Nav Works but No Sound from either

Hi Everyone
This is my first post and I would love it if somebody can help me out.
I have a 03 Range Rover Vogue and the radio,sat nav and cd changer imagines are coming on but no sound at all for a few days. Although today on a 1 hour journey the sound kept going on and off for periods.
Strangely when I have no sound the DSP option and Code is blacked out on the main menu screen and sometimes vanish altogether.
Please help on what could be causing it and what the cost might be.
Many Thanks
Paul

I had the Same Problem with mine also a 03. two fuses in the fuse box behind the glove box , give them a good clean up , cured mine after two attempts, hope it works ,

Hi

had the same problem with mine cured by unbolting the two battery leads - + and touching them together.

this resets the radio etc and hey presto i had sound again.

I had a similar problem but my old Vogue, it was a bit more serious than fuses, water was coming in from the rear window seal and the Sat Nav DVD player and DSP amp/connectors in the rear quarter panel (to left hand side boot panel) were soaking in water.

Managed to find and fix the leak eventually but not before it took the DVD player out and caused no end of problems with battery drain.

I asked a local land rover specialist and he told me it wasnt uncommon for water leaks in this area. Just double check to make sure everything is dry, might just be the fuses though!