Hello, My 2004 f150 STX (Heritage) has the stock Kenwood z828 in dash receiver. I was trying to put in some subs today and so I was trying to splice into the Power control wire. After reading the manual for my receiver it said the wire should be blue/white. I found the blue/white wire (stock btw) and snipped it. My front left speaker went out... So I fixed that problem but now I am stuck because the blue/white wire is for my front left speaker not the Power control wire and I have no idea what wire is the Power control wire.

Anyways, Anyone know what wire I need to cut to route to the amp as the power control wire? Any advice would be appreciated.

I didn't buy a wiring harness, but it seems that it had a wiring harness stock because the stock face plate is aftermarket (If that makes any sense lol).