iphone 1/8 to rca to amp input no soun

Hello Guys, I just bought a sub box off a guy and it comes with a AMP, I have a Pioneer 1300MP Unit in my car and a Kenwood amp kac-9105d - 2x kicker subs. I hooked up the ground and the Power wire, along with the blue wire from the deck, an the AMP powered up. From behind the deck I have 2 output and I connected the RCA cables back there to the AMP input. Still no sound. (The deck do play the other speakers fine) I then used the 1/8 Jack on my iPhone to RCA an connected it to the amp's input, still no sound from the SUBs... I just feel as if my issue as to do with me not understanding how these work 100% haha Thanks for any help :)

what is the brand and model of the amp?yuk

quiet rural missouri, near KC.

If your system moves you physically and not emotionally, you have wasted your money.

itsyuk wrote: what is the brand and model of the amp?

Here it is http://www.kenwoodusa.com/car_entertainment/amplifiers/kac-9105d

oh , from the way you worded the post i thought you already had the kenwood/kickers and had bought another setup from the guy.yuk

quiet rural missouri, near KC.

If your system moves you physically and not emotionally, you have wasted your money.

itsyuk wrote: oh , from the way you worded the post i thought you already had the kenwood/kickers and had bought another setup from the guy.

Yeah, I read it over and realize. My apologies, I was trying to get too much thoughts out at once, while at work

Solder a wire to the shield (The outer part of the RCA plug of the adapter) and ground it.

did you see this system work before you bought it?yuk

quiet rural missouri, near KC.

If your system moves you physically and not emotionally, you have wasted your money.

No I didn't test it, I just got fed up an took it out. And I got a 600W from my Uncle... Thanks guys