Remote Wire for Amp

[Stocklook]

I tried the search but only came up with a Yellow wire ??? didn't say where it was, I have ran all of my wiring and have built my box and rack, and now I need to find out where you tap into the remote turn on I would like to have the radio operate like it does now, on for a few sec until you open the door. there is only three wires left on the back of the radio Black,red, and small red, or is ther something in that box under the e-brake?

[Stocklook]

Ok, I guess I will poke around with my test light, open and close the door, I should be done by spring, JK!

 

Where is the door switch, that tells the comp the door is closed? "04 Silverado"

[NMBR1SPT]

Ya just poke around with a test light....you obviously have never hit a airbag wire......POW

[Stocklook]

I heard about someone that did and it broke their jaw in two places,

 

I found a place in the box under the dash next to the e brake, works great on and off with the radio delay, BUT it will shut off after a few min and then come back on after 5-15 min ??? so I just found an acc and used it.