Wiring Auto-On for Powered Sub

Recently installed a Kicker Hideaway and would like it to turn on when the engine is running or the key is turned to the On position. The DC offset option isn't working for me. I tried wiring the remote on lead to the grey 12v ignition wire on the stereo and the device never turned on. I then wired it to the blue and white 12v battery wire on the stereo and it wouldn't shut off even when the car was off! I'm now looking to add it to one of the wires in the fuse box but I can't find a diagram of the wiring and wire colors, just of the fuses themselves. Anyone know where I can find a digram or can tell me some good options to wire it to? Thanks, Gil

 

gray should have done it... assuming you turned the ignition on after you wired?

 

Thanks, redid the connection to grey and now it's working! Soldered this time.