Head Unit, Red and Yellow Together?

I am installing my deck right now. Ive connected all the wires in dash and  amps. Ive connected the red to red and yellow (hot) to yellow and also connected ground and turn on. (I have no internal amp in my deck, it is strictly for external amps so all speakers go through amps.

Nothing happens and does not power on that way, HOWEVER, if I touch the red and yellow (from the deck) wires together... everything works perfectly. I sohludnt have to connect the red and yellow should I? Arent they meant to be wired seperately?

Is it hurting anything for them to be wired together other than the little pop I get when I turn the car off or is a better way t owire it.

You guys are great, thanks. (please help quick, dash is ripped apart)

One of your wires is missing power.  Put both wires together from the radio and try connecting them first to the yellow wire to the car....if it works your red power wire isn't getting juice.  What kind of car is it?  Did you buy a harness for it?  Follow the red wire into the harness and make sure there is a wire hooked up to the same terminal on the cars harness.  I've noticed they aren't in the right place sometimes... You can get away with using just the yellow power wire from the car but the radio will always be on, regardless of the key position, try not to use just the red wire if thats ur case. Good Luck

Maxxed OUtt