do you think that the pioneer avic-z110, with all the right parts will help keep all of factor stuff, like on-star, bluetooth, steering wheel controls...please help!!!!!!

 

right parts and right installer will keep all factory functions.
I would give you hints on install and whihc module owuld work best but you didn't include your vehicle make\model\year

 

My bad, I have a 2009 SIERRA 1500 2wd crew cab, thanks for repling

 

use an OS-4 made by PAC Audio to integratethe radio. It is the absolute best module I have used and will work with both amplified and non amplified systems. It will retain your onstar, chimes, signals, back-up sensors and any other warning chimes.

If you have steering wheel controls and would like to integrate them into the radio, get a SWI-PS module to do this. It will be plug and play with the OS-4
Links below

OS-4
http://www.pac-audio.com/productDeta...&CategoryID=26

SWI-PS
http://www.pac-audio.com/productDeta...&CategoryID=29

 

How much is that aftermarket navigation system?