Trying to find a hot wire under my center console

I'm trying to find a hot wire I can splice my XM stereo pigtail into. I have a power inverter under the console, but I don't know which one of the wires I can splice into and/or if it will only be hot when I turn on the power to the bed outlet. Thanks in advance for any help.

 

x2 on the fuse block right behind the little cubby to the left of the steering wheel. there is also a diagram on the back of the cubby that tells you what fuse is what, just pull it out and look.

 

Thanks for the info guys. I think I'll go this route so I don't have to cut anything under the console.