Radio doesn\'t work

[allrounda88]

I have an aftermarket radio
I put my gauges on the ignition wire from the radio
Everything works fine
From one to an other second I don\'t have
Any power on the connectors to the radio which come
From the inside
What could that be maybe the battery is too empty
Fuses on the inside box on the right are all good

[RobMatthews]

There is a switched ignition feed and a perminant feed from the battery, Im quite sure one is green with a black tracer and the other is green with a blue tracer, It may also be as you said a flat battery so make sure its charged

[allrounda88]

so everything checked and i was a broken fuse
last one of the fuses in the interior
yesterday i checked it and couldn\'t see a broken one
but this was broken

so thanks for your answer