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AUX-GM3X Aux Input Jack for 2003-12 GM with XM module (U2K)
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AUX-GM3X Aux Input Jack for 2003-12 GM with XM module (U2K)

Only 2 left. May require assembly*)
  • $79.98
Market price: $99.95, you save $19.97
-20%
Connect and play AUX device in GM with XM and/or RSE without cutting or splicing.
Restrictions apply Please read entire description, warnings, install guide etc. prior to ordering.
Score: 4.67 (votes: 57)
Reviews: 3
— 3
Qty:  
  • Net weight
    0.79 lbs
  • Part Number
    AUX-GM3X
Connect and play potable audio devices in 2003-12 GM vehicle with hideaway XM module (U2K) and/or RSE (DVD) without cutting or splicing!

Is your 2003-12 GM truck, car or SUV fitted with a hideaway XM module and/or RSE (DVD)? If so, that is great news if looking to connect and play music from smartphone and other portable audio devices with a 3.5mm jack and if you prefer streaming; purchase our BTA-GM3x instead. For this cable to work as described, please confirm vehicle has the required XM module by pressing the "BAND" button on AM/FM radio (headunit) and cycle AM/FM/XM/DAB (Canada). If only FM/AM is displayed; the AUX-GM3x, sadly will NOT work. With the AUX-GM3x installed; users are able to connect and play portable audio devices (e.g. Smartphone, iPod, MP3 player and more) on the factory system without interfering with XM or RSE playback. To install; connect male 16-pin plug to XM module (usually behind glove box, hatch or trunk area), route and secure jack on or near dashboard (4mm or 5/32" shaft) and plug-in audio device. To listen to XM (if subscribed) or DVD (on car speakers) simply unplug audio cable from AUX jack (jack must be empty) -- its that simple--- no complicated setup, switches, cutting or splicing.
Alert:If audio device does not have a 3.5mm headphone jack (e.g. iPhone, Android etc.), purchase our BTA-GM3x wireless/Bluetooth solution instead.
» Vehicle must have hideaway XM module with or without subscription with or without RSE (DVD).
» Connect and play iPods, iPhones, MP3 players, Tablet, Smartphones and more
» Smart devices are able to stream from popular music sites, turn-by turn navigation and more
» Retain original look and feel of dashboard components.
» Listen to aux device on main speakers while rear passengers enjoy DVD audio on headsets
» Connects to hideaway XM module (not to radio). Alternately purchase our AUX-GM3 which connect at the headunit (AM/FM radio).
[To avoid costly returns, It is important to observe all requirements, warnings and install guide information prior to purchase.]
1. Works in 2003-12 GM Class-II vehicles listed in drop-down with hideaway XM module (With or without subscription/with or without RSE.
2. Connects to 16-pin socket on hideaway XM module (Does not fit AM/FM radio). Read install guide for possible XM module location.
3. XM subscription not required but vehicle must have the hideaway XM module with or without RSE. Will not work without XM module.
4. To retain XM subscription, select "Subscribed" otherwise select "Not subscribed". If NOT currently subscribed but plan to at a later date; select "Subscribed" otherwise XM will not play once activated.
5. Vehicle must have hideaway XM module (U2K) regardless of subscription status.
6. Cable is available in 4 (default), 6, 8, 10 and 12 ft. lengths. Measure distance between hideaway XM module and potential jack location. See drop-down.
» 16-pin main harness (4-12 ft.) x 1
» 3.5mm AUX jack (requires 4mm or 5/32" opening)

Avoid costly returns. Prior to ordering; please read entire INSTALL GUIDE which includes frequently asked questions prior to ordering.

Footnotes: [See drop-down for reference]
* In these vehicles hideaway XM module is at the very rear (trunk/hatch) area and requires the longer cables, or purchase the AUX-GM3 and install behind the headunit (AM/FM radio).
** Expired subscription means vehicle has an XM module but not subscribed to service (only able to tune the preview channel 1/184.)

1. Your vehicle MUST HAVE hideaway XM module (silver box). Subscription status could be active or expired. Don't ignore this.
2. Hideaway XM module is a silver box in remote area; (not built-into AM/FM radio). Click here for help locating XM module.
3. This cable requires assembly (build) and will not ship same day. After assembly (2-4 days) it is then shipped using method selected at checkout.

Printed instructions not included in shipment but available here in digital form:
View, print, download Installation instructions

Defective returns:
Our returns policy differs from than of other online merchants so we encourage everyone to read the returns policy page it in its entirety prior to ordering.
Defective returns eligible for warranty repair or replacement service:
Within the first 10 days, Discount Car Stereo will replace any defective or damaged part and provide a pre-paid return label (US Customers only). (Pre-paid labels are not issued for other reasons).
After 10 days of receipt, customer covers return shipping cost, however we cover shipping cost to supplier/manufacturer, and also the cost to ship back to you. If original purchase can't be replaced (discontinued etc.), we reserve the right to provide a substitute part of higher or equal value. Any claims for missing parts must be made within 7 days of delivery.
We strive to avoid costly returns by providing as much product description, exceptions, requirements, pictures and application possible. Click to read the full return policy page.

Gone are the days when customer needed to call or email to obtain shipping rates. At Discount Car Stereo.com, shipping rates are automated and calculated in real time and dependent on cart contents, weight and destination.
To determine applicable shipping for items in cart:
 - Proceed to checkout.
- If already signed in; select address from address book or if new or wish to remain anonymous; enter shipping address.
- Select from available shipping methods
Online shipping calculator provides real time rates and shipping methods.
We ship throughout the USA, Canada and select international destinations (Click country drop-down in checkout page for current listing or visit our Frequently asked questions page).
We are a family owned and operated specialty car stereo and accessory store and as such every effort is made to get your order processed and shipped at soon as possible; but because 95% of our offerings are made to order (not sitting on shelf collecting dust). Additional time (usually 2-4 working days) is required after which time orders are shipped using shipping method selected at checkout. Products requiring assembly includes this graphic in addition to warning messages at the bottom of product description page.
Paying for a faster delivery method (e.g. Express mail, Priority mail etc.) for products requiring "assembly" does NOT speed up assembly (built by hand) time; however, it does speed up delivery time after shipment.
Delivery time for in stock products requiring assembly= Assembly time (2-4 working days) + transit time (shipping method).
Por ejemplo: Order our very popular AUX-GM3x GM aux cable and select "USPS Priority Mail (2-4 days) nationwide; expect delivery between 5-7 business days after order placement.
Please contact us first regarding time sensitive deliveries.
Items not requiring assembly or customization (off-the-shelf), usually ship within 24-hours and includes this graphic.
Tracking information is emailed upon labeling. Customers accounts are also updated at the same time. All customers (with or without accounts) are able to check order status online which displays the same details available to our staff.
Except for Priority Mail Express® (Overnight Delivery*), USPS delivery times for Priority Mail® and USPS Ground Advantage™ are estimates and are not guaranteed; however ship time to most states is between 2-7 working days.
International orders require additional paperwork and processing time (6-10 days) prior to shipping and due to many factors (custom inspections, carrier changeovers etc. ) we care not able to determine delivery times .
Free shipping (when available); applies to US only

*with a money-back guarantee

USA/Canada: Pay with Visa, MasterCard, American Express, Discover, PayPal: PayPal, PayPal Credit, Gift cards that display Visa, MasterCard, American Express and Discover logos are also accepted.
Customer billing information (first name, last name, billing address, and credit card information) must be entered exactly as it appears on credit card statement otherwise transaction will decline. Once order is placed a pending authorization (not a charge) will appear on your account and removed within 7-10 business days or after being charged and order shipped.
International: Select PayPal to pay with card. International credit cards are NOT accepted unless registered through PayPal. Click here to learn more about PayPal.
All prices are in U.S. dollars. The actual price charged to International customers is subject to the exchange rate applied by PayPal.
Important notice regarding shipping to alternate (non-billing) addresses: Shipping to non-billing address is no longer allowed, unless proof of card ownership is provided. Any and all customers shipping to non-billing address will be contacted by email to provide additional proof.

Customer reviews
Average rating:
4.67 (Votes: 57)
Rating of votes (57)
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  • Matthew Kraft
    Oct 8, 2024, 08:51 PM
    I bought this a couple days ago and installed it before a long road trip and it work so perfectly. It looks and sounds factory and the quality of the parts is perfect. Definitely would recommend if you want to keep your radio factory.
  • N. Bejarano
    Jan 14, 2024, 03:48 PM
    Just wanted to say Thank you So much!!!. I installed it today and couldn't be happier! It works perfectly and looks and fit just like an OEM product if not even higher quality than OEM. The sound quality is perfect too and even though it wasn't intended to be used with phone calls it also works great that way too!. I use it with my Samsung phone using a USB C to 3.5mm Audio jack adapter. Again thank to so much!!
    Nathan
  • David Manns
    Apr 27, 2020, 11:34 PM
    This is an awesome harness and easy to install harness on my 2007 Trailblazer LT. It gives you an aux input while keeping the factory head unit and not losing Sirius XM radio. The music is very clear with no static or interface. It also works great when you receive a phone call. Caller can hear very clearly and all sound comes through speakers.

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