personally I'm not big on Kenwood anything. Not saying it is bad, I just don't like it. Pioneer h/u are good when you get a higher model. Personally I like Eclipse but I heard they were going out of business or did already. Installation wise you need a dash kit, harness, and depending on vehicle an antenna adaptor. Power wire depends on the size of amps you decide on. It's always better to get a little bigger so if you upgrade you will already be set. I won't run anything smaller than 4 gauge no matter what I am running but I will go bigger. Subs and amps will just start an arguement because everyone has their own opinion. Hope I helped.