Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Is this to use if you change or are not using the original bose amp?
Document: The luxury amp (it has 3 plugs on the side as opposed to the dumb amp with 2 plugs) does much more processing and gets its signals digitally.If this item did not work for you with your Bose system, it is probably because you have the luxury system. Look under your console to verify and look to see if the plugs going into the amp are on the front (short side) or the side (long side) of the amp.
I have an 07 Yukon with Nav and Bose. This unit worked exactly how it was supposed to. I plugged it into the back of my stock head unit, ran the Remote wire and front channel RCA's to my sub amp, tuned the audio levels to my liking, and now my stereo sounds great.There is confusion out there.. There are two different BOSE systems... the "premium" and the "luxury". They get signals differently.
I purchased this adapter to ad an amp to my factory radio in my 2009 Silverado.It worked great for a couple of months, but eventually the unit over-heated. White smoke started tocome from behind the dash, and you could smell "burnt plastic". I pulled the dash apart and the only thing thatsmelled burnt was the adapter. i opened the adapter housing, and there it was. The glue they use to secure the circuitboard to the housing got too hot and melted.
I installed this in a 2007 Chevy Tahoe LT with the Bose system and without Navigation. It was pretty simple to install once I got the bezel off my dashboard. I just unplugged the wires from the factory stereo, and plugged them into the PAC unit female ends. I then plugged the male ends on the PAC unit into the stereo, and put everything back together. This gave me the 2 RCA's out that I needed to hook up an extra amp.
This product performs as advertised. I put it in my 2011 GMC Serria extended cab. Stock radio, no NAV system. My Bluetooth and steering wheel controls still work as before, no change at all. I put in an amp and two 10&#34; subs and it works great. The unit fits behind the radio without any extra modifications.
I unplugged my stock deck ... plugged this module in the deck and the factory harnesses in the PAC module and I was done! From there I ran my RCA's to the back and I ha an an amp up and running. I cannot comment on the blue remote wire as my amp has automatic shut off without using it so I don;t have it connected. I wanted to keep my stock deck but ran and amp for a sub and this bad boy did the trick! :)
It works great with my 2012 non Bose radio. A bit big but still fits beside beside my top glove box. It's necessary if you don't want to cut into your factory wires and the remote wire is definitely great. I've had it for a month with no complaints.
I bought this to add the stock nav to my truck. on Chevy's with the Navigation they have an amplifier tooked under the center console, that is not available on every truck, I thought that by buying this I could use it to route to my aftermarket amplifier and then back to my stock speakers. Did not work as expected and when they tried to run it, all I could get was static on the speakers. I ended up having to get to RCA converters to run front and back channels.
Installed on an 09 Silverado 2500 without Bose. If you have Bose, this adapter won't work for you. Check [...] to find the right part number for the Bose system. Anyways, it was a breeze to install. Just pull your factory head unit out, plug the two harnesses into the two inputs on the PAC adapter, and plug the outputs from the PAC adapter into your radio. That's all. No splicing! Does what it says, gives you two sets of RCA outputs.
I installed this in my 2007 Chevy Silverado ext. cab LT. Took about 30 minutes to install and just plugged right in place. The box is pretty big but there is enough space behind the dash to hide it. It kept all my factory dings and allows me to use the steering wheel controls, even tho I have an after market amplifier attached. It did take some tweaking of the equalizers to make the subwoofers sound good but know it all sounds great.
Answer: It worked for my 2009 Chevy Silverado lt. Just make sure when you hook it up it's connected all the way. The first time I hooked it up I didn't plug it in all the way and only my left front speaker would work and I freaked out. Lol just make sure it's hooked all the way. But overall it's a good product and would recommend it