Upgrade Bose Speaker And Add Amp?

[thoryamaha919]

Alright looking for some help!!! I've been digging, reading, and scratching my head for the past week with all the different information on here and the rest of the wonderful internet! So here is the background first, I have a 2009 Sierra Denali with the "Premium Bose" system with the factory NAV.

Here is what I am looking to do with my truck. I would like to keep the factory NAV H/U and the Bose amp that comes with the system. I would like to ad and Alpine F250 amp to the system for the speakers and possibly a sub later on. I was planning on installing Infinity Reference 6020cs components for the front doors and I plan on placing the tweeter in the stock location A-pillar. For the rear doors I plan on using Infinity Reference 5022. My thought for the rear is that I only need to 2-way speakers just for rear sound filling for the surround sound effect. As for the front center dash speaker I have no clue what the size is and can not find that info anywhere.

I would like to keep the Bose sub in for now due to money issues. I due plan on possibly adding a sound processor to the system but I'm not 100% on that yet.

Finally, I was looking to add the Lockpick device for all the feature that are disabled while the vehicle is in motion but thats for later after all of the audio is taken care of.

How hard is this going to be? What items will I need other than what I already have?

I hope that someone will be able to give me some input on this task I am going to take.

[355ss]

How did things turn out for your install? I am thinking about doing exactly what you mentioned and wondered if you have had any luck with the install.