2004 Acura TSX, Factory Navigation Wiring Diagram For + And - To Test

Hello,

I pulled a center climate control / Nav system from a 2004 TSX from my wrecker and sold it. I looked up and down for a wiring diagram to test it prior to the sale but couldn't find one. I sold it on ebay and the customer says it doesn't work at all and is returning it.

I'm now waiting for it to come back. Does anyone know where the power / ground is so I can try to fire it up and test it out? I found a few plugs where I thought it might be, tried to apply 12v but no avail. One time I fried a radio so I typically don't power up wires when I don't know which is power and ground.

The donor car was fairly clean and was in an accident so I'm kind of surprised that "It doesn't work at all" as per the customer claim, but I didn't test it so I suppose it's possible.

Thanks
Kevin

https://metraonline.com/part/71-1721

This is the plug that would plug into the radio. You can see in the picture where the red and yellow wires are located.

Great thank you. I didn't even know metra made reverse harnesses. That's a great little hack.

Thanks