Problem With Stereo On At Position One Then Off When Ignition Lights On

[sadken 0]

Hello there.

Bit of background 1st.

I own a 1996 VW Golf VR6 and have recently fitted a new Kenwood HU, Infinity door speakers front and back with a Kenwood amp powering them and a Vibe Black air sub.

I have fitted a few stereos over the years with this kind of set up.

All has been well in the 2 week since I fitted it but yesterday I had reason to take out the head unit as the Blutetooth microphone for the HU arrived yesterday so I can call hands free using the HU.

Took HU out, plugged in mic (Without putting HU back in) made a test call to the missus...all working fine.

Plugged all the RCA's back in etc etc exactly as they were before.

Now, the stereo work when I place the keys in the ignition but as soon as I go to position 2 (Ignition lights on), the stereo powers off. (Although if I press eject at this point, the cd that is in there for testing still pops out).

I must stress that the only thing I did was to pull out the HU and fiddle about behind the HU trying to route the microphone wire through, just as I had done when routing the RCA cables and remote wire through etc

I am totally baffled as NOTHING has changed in terms of how everything is plugged in.

I have moved an earth ca=ble or something whilst routing the mic wire through the back?

Any help would me massively appreciated. (Not an electrical wizard but I do have a multimeter)

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