Intermediate power to head unit

[eRok-hba]

This is a new issue continued from an old thread "no power to deck" if interested to back track. i have discovered after buying a new touch screen head unit & wiring harness / interface that it will now do 1 of three things. 1.)Powers on with the turn of the key & powers down when key of in off position (as it should). 2.) It powers on with the turn of the key, but it never shuts down completely leaving some blue lights on in the physical buttons and completely drains the battery over night. 3.) It never turns on. This being the sitation explained from my previous thread. Im lost this is so ridiculous i am about loose my marbles. ANY genius advice for my mystery?

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[Boomin_tahoe 5,000+ posts]

Who installed the HU?

Sounds like it's not wired correctly.