I am trying to buy a new sound system for my 00' WS6, Stock.

For my head unit i might go with a Jensen VM9511TS (Not sure if it fits yet, does it?) (http://reviews.cnet.com/in-dash-car-...-31836025.html)
The reason being because my friend is selling it for $100 (retail price is 400, is there an adaptor for the steering wheel controls? Also is it worth it or should i get another head unit?

For my door speakers i am thinking about going with the Infinity Referece 6022si

For my backseat speakers i am going with the ED 7kv.2 subwoofer

Keeping the speakers in the back stock, If u have any advice on something i should swap or add to make my combination better please let me know thanks.