2004 XJ8 Radio Amplifier (or not?)

My car has factory radio with CD changer in the boot, no subwoofer.

Problem is no sound after main battery replacement. Radio head appears to work normally, LCD is alive, stations appear on display, tone controls change normally.

Does the radio head drive speakers directly when no subwoofer option or does it also require a separate power amplifer?

In the boot fuse box is fuse F34, 30A, not blown, protecting a power amplifier that I have not located.


I assume your car is an X350, being MY2004.

Have you looked behind the left hand side boot side carpet? You should find the answer there in the form of an amplifier.

Kind regards,
Bard Thomas

My 05 VP is in the shop now for the exact same problem. Everything displays correctly BUT NO sound. I replaced the amp with no joy. The shop thinks it’s a break in the fiber optic network. They are saying if one part of that system fails, the complete system is messed up. Each component is connected to the system. I HOPEFULLY should know more soon. I will update.