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AUX-CTS Aux Jack for 1st generation CTS and SRX with XM Module (U2K)

Only 3 left. May require assembly*)
  • $69.98
Market price: $79.95, you save $9.97
Connect and play audio devices in CTS/SRX with hideaway XM module.
Restrictions apply. Please read entire description, warning, assembly time and install guide prior to ordering.
Score: 4.74 (votes: 47)
Reviews: 3
  • Net weight
    0.89 lbs
  • Part Number
Connect and play portable audio devices in 1st generation CTS and SRX with XM module (U2K) code.

If your 2003-07 Cadillac CTS and 2004-06 SRX include XM module (U2K package) but no connection for smartphone, iPod, MP3 player, Tablet etc., the AUX-CTS is for you! The AUX-CTS cable affords these vehicle owners the opportunity to connect and play portable audio devices without compromising XM subscription or wiring integrity. To determine if vehicle has required XM module; press the radio "BAND" button to switch between FM1, FM2, AM, XM1 and XM2; if XM1/2 appears your vehicle will support our AUX-CTS, but if only FM, AM bands are displayed; this cable, sadly will not work. To install simply remove radio, connect cable, route and secure 1/8" jack on or near dashboard, connect audio device to jack and enjoy the best possible sound on car speakers. When in the mood for XM (if subscribed), unplug audio cable from jack. -- its that simple --- no complicated setup, wire cutting or splicing. For the AUX-CTS to work, vehicle must have an XM module which is a metal box under rear deck (CTS) or rear side panel (SRX).
» Works in vehicles with XM module (U2K) with or without subscription
» Connect and play Smartphone, iPod, iPhone, Tablet, MP3 player and more
» Internet connected smart devices are able to stream Spotify, Pandora, Apple music, SiriusXM and more.
» Listen to apps (e.g. navigation etc.) on car speakers
» Retain original look and feel of dashboard and wiring integrity (no cutting or splicing)
» Connects at the back of the AM/FM radio.
» Plug-n-play without splicing factory wiring.
[Please read all requirements and warnings below prior to purchasing this part]
1. Works in 2003-07 CTS (CTS-V) and 2004-06 SRX With XM module. Vehicle must have XM module (RPO code U2K)
2. XM subscribers select "Subscribed"; or "Not subscribed" if service has expired. If not currently subscribed but plan to activate at a later date; select "Subscribed" from options in drop-down.
3. Works on all CTS radios (navigation and non-navigation) and SRX non-navigation radios only. SRX navigation radios (RPO Code U2V) are NOT compatible. See AUX-SRX
4. Connects to AM/FM radio behind dash. If you prefer not removing radio, purchase our AUX-GM3x which connects to XM module on rear deck (CTS) or rear side panel (SRX).
5. Cable is approx. 4 ft. long
» Main cable (approx. 4 ft. long) x 1
» Free 3.5mm Male-Male audio cable (3 ft. long) x1

Footnotes: [See drop-down for reference]
* SRX navigation radios are not compatible. Navigation radio requires our AUX-SRX
To retain XM playback (if subscribed); select "Subscribed". If service has expired select "Not subscribed". if currently expired with plans to renew at a later date; select "Subscribed".

Avoid costly returns. Prior to ordering, please review your INSTALLATION GUIDE which also includes frequently asked questions.

1. Installs to AM/FM radio behind the dash.
2. XM module required, but subscription is optional. Press radio "BAND" button repeatedly. If XM1/XM2 is displayed, vehicle has required XM module.
3. This cable does not ship same day. It must first be assembled after which it is then shipped using shipping 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, shipping rates are automated and calculated in real time and dependent on cart contents, weight and destination.
To determine applicable shipping for:
- 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:
4.74 (Votes: 47)
Rating of votes (47)
Please sign in to add review
  • Terrell Armstrong
    Aug 29, 2019, 05:58 PM
    If you have a older Cadillac CTS that don't have a aux jack , this is the product for you. The installation was very easy, the harness fit right in with no problem. Its worth the money to buy this harness if you want to kept all of your factory radio settings and all the things it can do without buying a new radio. I am very pleased with the purchase
  • Matthew Presley
    Jan 8, 2019, 04:58 PM
    I received this product and installed it in no time, and as soon as I installed I tested it and noticed something strange. The sound on the driver side was great quality, but on the passenger side it was not good at all. I removed my radio prior to ordering to make sure that I ordered the correct one for my vehicle. Hoping to get this issue resolved and have a product like I was hoping for.
    Discount Car Stereo
    Oct 31, 2019, 09:35 AM
    Hello: This is due to a slight wiring change made by GM in the 2005 production. The change affects CTS models between 2004-05 making it possible for early production year 2005 to have 2004 (old) wiring and late 2004 production to have 2005 (new) wiring. If you own a late 2004 or early 2005 production CTS, click installation instructions for details. Any customer in this situation are able to return cable for a quick fix or contact us for a DIY.
  • W. Wright
    Jan 8, 2019, 04:58 PM
    I ordered an auxiliary adapter kit for my 2007 Cadillac CTS. I put it in this weekend over the course of 45 minutes. Thank you for the quality product and downloadable instructions. I will certainly keep you guys in mind for future projects.

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