01 Chevy Malibu acc wire for remote

I have an 01 Chevy Malibu, I can't find the acc wire coming from the factory deck, so I connected the remote wire to the always hot (orange), is this bad for my amp to always be on? My wiring diagram says yellow is acc, but yellow is a speaker wire (right, rear -) I tried connecting the remote wire to almsot every wire coming from deck, only orange worked, any ideas?

I found the cluster of wires, do you know which color it is? I think it's the purple wire, but I'm not that good at reading wiring diagrams and I don't want to short out something important.

You really should buy a multimeter so you can test these wires.  Check the thick brown wire at the ignition harness.My ex once told me I have a perfect face for radio.

Thanks a lot for your help guys, I never would have figured that out without the help.