Aftermarket radio won't turn off

[OL RED]

I have a 97 1500.
When I put the new deck in, it switched on and off with the key just fine. About a week later it just stayed on all the time.

Is there a relay used to switch the power, or is it controlled by the ignition alone?

Thanks in advance

 

[east302]

Yes, it is hot with ignition on, circuit 43, yellow wire. Disconnect it and see if you have voltage at cavity 9 with ignition off. If no voltage, then I’d say it’s a radio issue.

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[OL RED]

Awesome, thanks for the wiring diagrams

 

[upper_tanker]

This may sound stupid, but I just had a kenwood do this in mine. I'd have the truck off, the radio would look like it was off (black screen), but there'd still be sound through the speakers. I ended up pulling the faceplate, and pressing the little reset button on the actual radio behind the face plate and this solved my problem. Might be worth a shot.

 

[OL RED]

This may sound stupid, but I just had a kenwood do this in mine. I'd have the truck off, the radio would look like it was off (black screen), but there'd still be sound through the speakers. I ended up pulling the faceplate, and pressing the little reset button on the actual radio behind the face plate and this solved my problem. Might be worth a shot.

Thanks for the idea, I'll give it a shot!