Metra TYTO - 01 Harness help!

[arunanlogen]

So i've had my metra harness in my 2003 lexus is300 for a while now, yesterday i disconnected the deck to do some wiring for something unrelated, now when i plugged the deck back in, no audio! shows that the music is playing though, upon further investigation i found that only when the car is ON, not just battery on but the car itself is ON, and i unplug the metra harness from the black box, and re plug it back in, the audio works, but i have to do this every time i turn the car off and on, anyone have any idea what it could be?

Thanks

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