i am installing a sony xplod(i hate sony) into my dads 05 silverado. as soon as i got everything installed i turned the key on and it wouldnt turn on. i was wandering if there was something i had to do extra? i have done several radio installations and just did 1 on my BMW. i know we had to change up some wiring on my friends 02 tahoe when we did his. im lost and ran out of ideas. the fuses are good and i know there is power going to it as i plugged the old raido back in just to make sure. any help?