Aftermarket HU Retain Kits

[NathanJax]

Most installers I know swear by the PAC stuff. They wont touch Metra or
Axxess.

lol. My guy only deals with Metra and won't use anything else. I'm sure it's all made form the same factory in China. It's just were they get the best deal from

 

[Cash_88]

What did you end up doing cash?

I've yet to find a quality NBS as of the moment but as far as the modules I've read more reviews of the PAC brand than the GMOS.

Sent Via 6.2 Carrier Pigeon

 

[wreedps]

I went with the PAC. I will post up how it works when I install.

 

[Chiggy]

Ok. Let me start by saying this is my 1st post but I have been reading this forum for over a year now and it is by far the best source of info I have came across!

On to my question. I am in the market for a NBS '03-06 Yukon/Tahoe after owning '96 and a '99 OBS Yukon SLT 4x4s and have found a few good candidates. They both have Bose and OnStar options, neither have RSE. One has steering wheel controls and the other doesn't. As far as the audio department I want to upgrade to a Pioneer AVH-X5500BHS head unit. I read that I will need the GMOS-014 kit to install and retain the OEM features and the ASWC-1 for the steering wheels controls. I've also read of people using the PAC OS-2C-Bose kit and I'd like to know which is preferred? Which is more reliable? Also, does the OEM HU make the chimes audible through the speakers or through a speaker up front? I see that the harnesses have a adjustable speaker built in would anyone like to comment if they are the same audible level as OEM? Thanks, I don't want to sound redundant as I have done research through this forum I just don't want to deal with headaches and returns. Any advice is appreciated.

I just installed the GMOS-04 and what I learned is: You will keep your door chime, low fuel, on star, headlight warning, everything. The ECM is sending signal through the stereo wiring harness to the amp and to the speaker to make the chimes. With the Metra gmos-04 there's a wire you strip back and you touch it to ground to adjust the base volume of the onstar system, it gives you instructions on how to do this. I also installed the aswc-1 and it plugs into an aux plug that comes from the gmos-04 harness, I didn't have to use the one that came with it, I just had to look at what wires it was wanting me to tap into coming from the plug and clip the rest. It was a breeze to set up, it learned my radio in a few seconds.
I didn't actually do ANY wiring while in the vehicle. I had the head unit, the harness for it, the gmos-04, the aswc-1, the instructions for each adapter, the parking brake bypass for my specific application, my wire crimp-ers, and a bunch of connectors. It took me a little while to realize that I could use the harness coming off the gmos for the aswc but after looking at the pin positions it saved me a lot of headache.