Head unit & battery

[S_123]

Recently my car hasnt been starting.
I've figured it's the battery, as when I charge it, she turns on fine.

I think it may be my head unit (Alpine IDA X001)

I don't know if it's been wired up properly, which may leave it running while the engine is off.
I always take the head unit face off over night etc, but even when I do this the battery still goes flat.

Is there a way to check the on/off wiring? What would be making it stay on?

Is there a specific wire which turns the whole unit off when the car is off?

 

[Ben.Block]

Can you listen to music with the engine off? and key out of the ignition?

 

[S_123]

No I can't, the ignition has to be on.

 

[Ben.Block]

Im sure the headunit won't be running then, or drawing enough power to run down your battery! Have you got a seperate amp and sub set up?

 

[S_123]

I have an amp, but one of my speakers has blown so I took the amp out, but the wiring is still in. And that's it.

I don't know what else would be draining it?

 

[atkinsonb1]

This happened to me yesterday

I installed an Alpine ida-x300 and then played around with it for a bit and then it wouldnt start!!