AXXESS GMOS-04 DATA INTERFACE FITS 2000-2013 SELECT GM VEHICLES
$100.00
Provides accessory power (12-volt 10-amp) Designed for amplified systems ONLY Retains chimes and balance and fade Provides NAV outputs (parking brake, reverse, mute, and speed sense) Pre-wired ASWC-1 harness (ASWC-1 sold separately) Retains OnStar/OE Bluetooth Adjustable gain control for chimes and OnStar
High-level speaker input USB updatable Contact Metra’s Tech Support for further assistance This product fits the following vehicles:Allure 2005-2009Lacrosse 2005-2009Rainier 2004-2007Rendezvous 2002-2007Terraza 2005-2008Century 2004-2005 CADILLAC Escalade 2003-2006Escalade EXT 2003-2006 CHEVROLET Avalanche 2003-2006Cavalier 2000-2005Colado 2004-2009Corvette 2005-2011Express van (full size) 2003-2007Impala 2000-2005Malibu (2004-05 Classic only) 2001-2005Monte Carlo 2000-2005Silverado Pickup Classic 2007-2007Silverado Pickup (all models) 2003-2006SSR 2003-2006Suburban 2003-2006Tahoe 2003-2006Trailblazer 2002-2009Uplander 2005-2008Venture Van 2000-2005 GMC:Canyon 2004-2010Envoy 2002-2009Savanna Full Size Van 2003-2007Sierra (Classic) 2003-2007Yukon / Yukon XL / Denali 2003-2006 HUMMER:H2 2003-2007H3 2006-2009 ISUZU:Ascender 2003-2008I290 2007-2008I280 2006-2006I370 2007-2008I350 2006-2006 OLDSMOBILE:Alero 2001-2004Bravada 2002-2004Intrigue 2002-2002Silhouette 2000-2004 PONTIAC:Aztec 2001-2005Grand Am 2001-2005Grand Prix 2004-2008Montana 2000-2005Sunfire 2000-2005 SAAB: 9-7x 2005-2009Saturn Relay 2005-2007 USB update interface compatible,For amplified audio systems premium and Bose Retains Onstar w/adjustable volume output, Retains chime with adjustable volume output Retains RAP feature, Navigation outputs now included Show more
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- Description
- Additional information
- Reviews (10)
Description
Product information
Additional Information
| ASIN | B000980HC4 |
|---|---|
| UNSPSC Code | 25170000 |
| Customer Reviews |
1,243 ratings 4.2 out of 5 stars |
| Best Sellers Rank | #27,142 in Automotive (See Top 100 in Automotive) #41 in Automotive Replacement Radio Electrical Accessories #2,368 in Car Electronics Accessories |
| Date First Available | October 2, 2001 |
Additional information
| Item Weight | 0.32 ounces |
|---|---|
| Product Dimensions | 9 x 6.75 x 2.5 inches |
| Country of Origin | China |
| Item model number | GMOS-04 |
| Is Discontinued By Manufacturer | No |
| Warranty | 1 Year |
| Weight | 0.55 Pounds |
| UNSPSC Code | 25170000 |
| Customer Reviews | 4.5 out 5 |
| Date First Available | October 2, 2001 |
Ryan Jinkins –
I didn’t even know my 2006 Pontiac Grand Prix had a factory amplified sound system until I went to best buy to get a wire harness to install an after market head unit and they told me the harness was going to be over $200. They explained to me what kind of system these Grand Prix come with stock. Well, I am hard headed and I have never had to pay over $20 for a wire harness so I still bought the $17 harness and thought maybe I could just figure it out on my own with out having to pay more for the harness than I did for head unit. I installed the cheap harness and got everything up and running but everything sounded like junk and factory radio ended up sounding MUCH better than my after market. My speakers were hissing to the point it was embarrassing me if anyone got into my car. So then i bought an OEM output converter and that actually did help with the hissing but then i still couldnt make any equalizing adjustments from the head unit. I am sound stereo hobbiest so i have all sorts of different equipment in my garage and i am constantly switching out different amplifiers and subwoofers, etc. and even though the OEM took care of the hissing, I still could not do anything else adjustment wise because the factory amplifier is already set at the exact settings for factory speakers and the factory radio doesn’t have equalizing adjustments like the aftermarket radio does. So, to shorten this up your factory speakers are already getting equalized by the factory amp, you can not send your your speakers a SECOND sound wave of the same kind of settings. So you do need a harness like this one. If you are looking for just getting rid of the hissing then Google OEM’s but if you are like me and like to have control of your own settings then you NEED this wire harness. Trust me, I spent 2 months of trying anything I could possibly do to NOT buy the more expensive harness. I got this harness and now I can bump my subwoofers and adjust my factory speaker. I personally still kept my cheap harness because I plan on ripping every single factory audio wire out of this car and building my own, but this harness works for me until then. Good luck and save the struggle. Buy this harness. If you have not read by now then just know this harness does NOT come WITH the steering wheel functions but this harness does come compatible for you to use a harness for steering wheel functions and that is important to know because not all harnesses are compatible for the AW1 AND you will be stuck with a $60 steering wheel harness and still no way of being able to use it. This harness has a pigtail for the AW1 so do your self a favor and forget about how much it is going to cost for this harness and the steering wheel controls. I personally wish I could have found a way to pick and choose out of the 4….. 1. Door chimes, 2. Aftermarket head unit, 3. Onstar (really? Who still uses onstar but atlease the wiring is already ran to the mirror for when I install a dash cam) and 4. Steering wheel functions) all I wanted was my steering wheel and head unit but this harness made me happy for now and I’ll just sell it on Ebay later. Good luck with your system and for what it is you are doing to your car that has a factory amp you need this harness. Thanks
zamir margalit –
For the most part it is easy to install. Should you have questions, Metra’s tech support people are as arrogant as can be. Should i ever need to install another radio, I would look for a harness made by another company. I would never recommend dealing with Metra if there is an alternative.
Travis –
I tried hooking up my Pioneer aftermarket stereo in my 2006 chevy silverado without the interface (being cheap). By using red to brown ac wire for turn on. That didn’t work for me, i was getting tons of engine noise etc. So i got this interface and it worked. I don’t have Onstar, so that part i left out. It works with my door chimes and alarm. The only thing i was hoping it would also do is work with my volume control on my steering wheel. But that part didn’t work.(its probably my wiring) But i am ok with moving my hand 2 feet to the side to turn up volume lol. The main thing is it works and for this price i hope it works for a long time. If it doesn’t i will be back.
ZacWolf –
The instructions could have been better. This is not for the novice.This is a manufacturer specific (GM) wiring harness, not a vehicle nor receiver specific harness, which means that there were over 16 wires that had to be matched up to the receiver’s harness, soldered together, and heat-shrink wrapped. This kit comes with a pre-wired 16-pin connector that plugs directly into a separate (optional) Axxess ASWC-1 controller (see my review there for specific gotchas I ran into with that product). While I had some problems with the ASWC-1, this interface worked without additional configuration needed.
Sam L. Jackson –
I wouldn’t recommend this kit for a novice, as it is quite confusing, and because it’s so universal, it is difficult to figure out what to wire where for YOUR vehicle and car (even more confusing if you have the steering wheel control module). However, once you figure it out, or if there were higher quality instructions, this would be perfect. I would recommend to the makers of this device to spend some money on making some clear, quality installation videos for common vehicle types. It’s also a bit daunting to figure out which of these will work on YOUR vehicle.Once it’s installed, it works flawlessly. I would strongly recommend getting the heat solder butt-connectors if you have to do any bare-wire connecting in your installation. My only other gripe is that it is quite expensive for what it is, but if you have a BOSE system, you’re not going to get your radio installed right without this.
MrFixItMrFixIt –
Why this over the Pac Audio RadioPro 5 (RP5-GM11) ???? Because the RP5-GM11 may inject very noticeable hiss and static into your speakers. The GMOS has the ability to eliminate that problem by turning down the gain. There is no adjustment for this on the RP5-GM11.My vehicle: 2003 Hummer H2, bose sound system – OEM 6 disc head unit, bose speakers and subwoofer, and “luxury” version of the bose amp. The LUX amp is the digital one, and I can now advise that you should really know in advance which one you have before choosing an interface like this. Google lux vs premium bose amp. See attached photo (posted by another installer) We are not talking about whether or not your vehicle is a “luxury” class model or not.I upgraded my head unit to a Pioneer AVIC8200NEX. I installed two RP5-GM11’s (first one had other defects besides hiss). Whether or not my new head unit wiring harness was even connected to the RP5-GM11 module, and no matter what audio source was selected even if fully connected, I expereinced a low level hiss coming from all speakers, not related to engine speed (NOT engine whine) and present whether the vehicle was running or I was just running power from the accessory key position. All my connections were double checked, soldered, and all grounds were fine.The hiss only went away when power was taken away from the RP5 unit. That only happened when I chose to “power off” the head unit completely. Hummer H2 – not the quietest vehicle, and I could clearly hear the hiss while driving under all conditions.Contact with PacAudio resulted in them having no solutions, other than telling me they tested their unit with “all trim levels” and this was the first they heard of this. They suggested I bypass the amp. A search of the internet, however, revealed others with the hiss issue.On to the GMOS. I also bought the steering wheel controller (ASWC-1) which was an easy install as the GMOS module already has a pigtail connector for the steering wheel controller – other than splicing in a red wire to the radio harness power lead, this part of it was plug and play – auto detected my head unit and all was good.As for wiring the GMOS, pretty straight forward and no more complex than the RP5-GM11. (24 pin GMOS harness that connects to one pulled from OEM radio has a solid orange wire – no mention in install directions on what it was for – the matching pinout on my OEM connector was empty there anyway, I capped off the orange wire, and it didn’t matter in the end. If you have on-star, and whether or not you use on-star, I would still suggest connecting your aftermarket radio’s “mute” wire to the GMOS harness mute wire. If not, whenever on-star turns on, whether by accidently hitting the steering wheel controller on-star button or not, it will shut off power to your radio. Then you get to watch it go through a start up from scratch process – not great if in a navigation mode.What makes the GMOS better?1) That adjustable gain screw adjustment. As with the RP5-GM11, both with and without the new head unit connected to the GMOS, with the gain turned all the way up, I heard the speaker hiss. Back down the gain just a little and the hiss was gone. Amen. As for volume; even with the gain turned down even more from where I set it, the sound was still louder than with the OEM. I lost nothing.2) On-Star volume can be controlled directly from steering wheel volume control – with RP5-GM11, you had to pick from one of a few preset levels and have to access the module to do so.3) The GMOS is firmware upgradeable via a common micro USB cable – with RP5-GM11, you have to get some proprietary cable from them.While the RP5-GM11 may not cause hiss issues for GM owners with the “premium” non-lux amps, I would encourage anyone with speaker hiss (not engine whine) to try this GMOS over the Pac Audio product.
jahdhfdhfajk –
Very easy to install the instructions were very clear. I purchased and installed this, as the pac pro5 module that I originally pruchased, had a lot of distortion and it had the pre amp pumped up.I later found out that there are specific models that will intefere if you have the premium amp installed as i did, having a 2003 avalanche with the bose sound system.
James Scott Malone –
Exactly what was needed to hook up the new Kenwood double din to our 2006 Tahoe with Bose and OnStar. A little expensive for a wiring harness but what other choice do you have.I did have to put the old factory deck back in and set the controls to flat because there was way too much bass with the new unit.I do recommend if you have a vehicle similar to mine
Chad –
I spent extra time soldering every joint, so my install took a little extra time. With that said, this kit worked well for my application. I have a 2004 Chevy Avalanche, to my failure I did not purchase the steering wheel controls kit to go with this one. If youre in the same vehicle I am, dont make the same mistake I did. The kit im reviewing had everything it said it did and worked well. I would use this brand again and be happy to do so.
Joshua Gardner –
This harness allows you to have sound with the factory amp without running new speaker wires or blindly cutting and soldering wires from the factory amp. If you connected an aftermarket headunit and found you have no sound this is why. You need this harness to give you sound from the speakers with the amp.