Scyila

Hey guys, So I bought my 2000 Silverado 1500 LS from the dealership and it didn't have a radio in it. nor the plug, So I was fishing around and trying to figure out the wires needed to use in order to install my aftermarket stereo, Needless to say It's wired wrong, it only comes on when I use the switch to turn the lights on, And its obviously on during the night due to automatic lights. Is there any hope on how I can wire it to turn on with my DRL? I have no idea what to look for or how to fix it. Thank you in advanced.