I have a Skaer 500 at the moment and I just bought 4 Infinity Kappa 682.7CF speakers for my door and rear to replace the stock speakers. Anyways, is this the wiring adaptor I need to be able to connect it all to my Pioneer AVIC-Z1?
http://www.crutchfield.com/App/Produ...or&tp=3097

I need 4 of them, correct?

Also, I bought a pair of Pioneer TS-SW841D to replace the door subs. Do I need the same wiring harness for that aswell? So I need 6 total?

Sorry for the newbie advice, I tried the search and as you can tell, this is my first audio install.