How to Activate SiriusXM in Your Car (Radio ID + Steps)

To activate SiriusXM in a car with a SiriusXM radio, find the Radio ID (on most radios it appears when you tune to channel 0), then ask SiriusXM to send a signal to that radio from siriusxm.com or by phone at 1-800-689-6881. A new car’s trial is usually active at purchase, so many drivers only need a refresh. This guide covers where to find the ID, the exact activation steps, the refresh check, and what to do when the radio stays silent.

Activating SiriusXM in Your Car: Step by Step

The steps below follow SiriusXM’s own help pages, read on October 21, 2026. Phone numbers, offers and prices can change, so treat siriusxm.com as the final word on anything involving money.

1. Check whether a trial already exists. SiriusXM says the trial in a new vehicle with factory-installed SiriusXM, and in a pre-owned vehicle that came with a complimentary trial, should be active at the time of purchase.
2. Find your Radio ID. Tune to channel 0 on most radios, or use the make-by-make table later in this guide.
3. Park outside with a clear view of the sky. SiriusXM says the antenna needs a clear view of the sky before a signal is resent.
4. Tune to the preview channel. The radio must be powered on and tuned to channel 184 for Sirius radios, or channel 1 for XM and SiriusXM radios.
5. Send the signal. Use the request-a-signal page on siriusxm.com and enter the Radio ID, or call SiriusXM Listener Care at 1-800-689-6881 (the contact page lists 8 am to 8 pm ET, every day, plus 24/7 online chat).
6. Verify. Tune to channel 4. If you hear audio, SiriusXM says no further steps are needed.

If you bought a vehicle and received no information about a trial, SiriusXM says to try sending a signal first, and if that does not work, to start a new trial on its website. Only type account or payment details into pages on www.siriusxm.com, which SiriusXM lists as its U.S. domain.

How to Find Your SiriusXM Radio ID (Channel 0 and Menu Paths)

SiriusXM calls the number a Radio ID, ESN or RID, and says that for most radios it is displayed by tuning to channel 0. Everything else (the signal request, the account registration, adding a vehicle) asks for it, so write it down before you start. Length is not uniform: SiriusXM describes a 12-digit ID on some older Mazda3 radios and an 8-digit ID on Mazda Connect systems, and the 2017 Mazda3 owner’s manual describes an 8-digit electronic serial number.

Use this table when channel 0 shows nothing. It is compiled from SiriusXM’s Find Radio ID help page, and each row is as SiriusXM states it for that maker.

Make	Where SiriusXM says the Radio ID appears
Aston Martin	Press MENU, open the Sirius menu, go to Advanced settings
BMW	2003 to present: in Sirius mode, hold the SAT button for more than 3 seconds. 2004 to present: scroll right to Options, then Manage Subscription
Ferrari	Select SAT mode, press MENU, choose Settings (audio, traffic and video IDs are shown)
Ford and Lincoln	Tune to channel 0. Sync 4 with 360L: after channel 0, scroll to help and support. Older radios: hold AUX and Preset 1 together, or Sirius and Preset 1 together, or MENU then SYSTEM INFO
Jaguar	XK and XF: SAT Options, then SAT Information. XJ: Options icon, then More. 2003 to 2007 model years: channel 0. 2010 model year: Settings, then SAT information
Land Rover	Touch screen Settings, then SAT options, then SAT info (the call center number shows too)
Maybach	Audio, then SatRadio, then Service
Mazda	Before 2014: hold the ESN button about 1.5 seconds if the radio has one. Mazda3: select Sirius or SiriusXM and tune to channel 0. Mazda Connect: select XM as the source and channel 0 from the channel list
Mercedes-Benz	Audio, then SatRadio, then Service (the call center number shows too)
Mini Cooper	Rotate the right-hand rotary button to any channel that is not activated and the ID appears
Mitsubishi	Press the SAT button
Rolls-Royce	Control display: Radio, then Satellite Radio, then Category, then pick any channel
Volvo	2005 to 2006 model years: Source knob to SAT Settings, then Sirius ID. 2007 to 2009 model years: MENU, then Sirius Settings, then Sirius ID

Makers not on SiriusXM’s list, such as Toyota, Honda, GM, Hyundai and Kia, have no make-specific path on that page. Start with channel 0, then look in the owner’s manual under the satellite radio section. Mazda’s manuals show what to expect: the 2017 Mazda3 manual says to press the PREVIOUS or NEXT channel button to reach channel 0 and that activation typically takes 2 to 5 minutes, and the current Mazda Connect manual says to choose channel 0 from the Channel List. Older manuals also print activation phone numbers that may have changed, so use the number on SiriusXM’s current contact page instead.

One related question is whether the same ID follows you to a different car. It does not, because the ID belongs to the radio. If you are moving service, read whether a SiriusXM Radio ID works in a new vehicle and how to switch SiriusXM to another car.

New Car, Used Car or No Trial Info: What Applies to You

SiriusXM’s activation help splits drivers into three groups. The group you are in decides the first thing to try.

Your situation	What SiriusXM says to do
New vehicle with factory-installed SiriusXM	The trial should be active at purchase. If the radio is off or missing channels, send a signal to the radio using the Radio ID
Pre-owned or certified pre-owned vehicle, dealer promised a trial	The trial should be active at purchase. If channels are missing, send a signal with the Radio ID
Bought a vehicle, got no trial information	Try sending a signal. If that fails, start a new trial from SiriusXM’s website

Setting Up Your SiriusXM Account (Register Your Vehicle)

Activating the radio and registering an account are separate jobs. The radio signal gets audio playing; the online account is where you see the plan, the end date and the follow-on subscription. SiriusXM’s help pages describe it this way:

• First-time customers: register your account in the Online Account Center using your Radio ID (or account number), then choose a plan that starts when the trial ends.
• Already a subscriber: sign in and use the Add Car option on your dashboard, then enter the new vehicle’s Radio ID. If the new radio is on a trial, you can add a follow-up plan for when it ends.
• Moving a plan: SiriusXM offers a transfer-service route if you want an existing plan to start on the radio your trial is on.
• Seeing the end date: log in and open the Subscriptions tab. If you bought through the SiriusXM app or another retailer, you manage billing with that seller instead.

For a second car, SiriusXM says you can add the radio to an existing account, which may qualify for its family discount. Our guide on running SiriusXM in two cars goes through that case.

Refreshing the Signal When the Radio Stays Silent

A refresh (SiriusXM calls it sending a signal or radio signal request) tells the satellite service to re-authorize your radio. SiriusXM’s troubleshooting page describes a simple test first: tune to Preview Channel 184 and listen. If you hear audio, the radio is reaching the satellites and a signal request can be sent. If you do not hear audio on the Preview Channel, SiriusXM says to contact your dealership directly for additional support, because the problem is then the antenna, tuner or wiring rather than the account.

What you hear	What it points to	What to try
Audio on the preview channel, silence elsewhere	Radio receives the satellites but is not authorized	Send a signal with your Radio ID, then check channel 4
No audio on the preview channel	Reception or hardware problem	Move to open sky first, then see the dealership as SiriusXM advises
Only the preview channel plays	Possibly an ended trial or an unlinked subscription	Sign in to your account and check the Subscriptions tab

For deeper reset steps, see how to reset a Sirius radio, and for a car that has no factory tuner, how to get satellite radio in your car.

Trial, Plans and What Happens When It Ends

SiriusXM says the trial in a vehicle is non-refundable and non-transferable, so if you sell or return the car before it ends, contact SiriusXM so the account is updated. To see which plan your trial includes, SiriusXM says to log in to the Online Account Center; it also lets you set listening preferences and build a channel guide.

When the trial is ending, SiriusXM says you can pick a subscription plan that begins when the trial ends, so you do not miss a minute of service and do not pay until the new plan starts. As of October 21, 2026, SiriusXM’s pages advertised a $1 for 3 months offer for new subscribers, with a credit card required and automatic renewal at then-current rates unless you cancel at least 24 hours before renewal. That offer can change or end, so read the current terms on siriusxm.com before you sign up.

No SiriusXM Radio in Your Car? Stream It Instead

A car without a satellite tuner can still play SiriusXM. SiriusXM’s Ways to Listen page says a streaming-only plan works through Apple CarPlay, Android Auto, an aux or USB cable, or Bluetooth audio, and that a cellular data plan is required to stream without Wi-Fi. For CarPlay or Android Auto, install the SiriusXM app, connect the phone to the car by USB or wirelessly if the car supports it, sign in to the app, and pick SiriusXM from the dashboard screen.

If the car has no aux jack, read how to add an aux port to a car. To use the phone app, see how to connect the SiriusXM app to your car, and for the video side, how to watch SiriusXM video in your car. If your car has a SiriusXM-Ready stereo but no tuner, an add-on tuner like the pick above is the other route; the subscription is sold separately.

Avoid Activation Scams

Activation is a favorite hook for fake texts and calls. SiriusXM’s own guidance on spotting fakes says its primary domains are www.siriusxm.com (U.S. only) and www.siriusxm.ca (Canada only), that it does not accept payment by PayPal, Venmo, Zelle, Cash App or cryptocurrency, and that it will never ask for passwords, a Social Security number or Tax ID numbers. If a message has a link you do not recognize, do not click it: type siriusxm.com into the browser yourself or use the phone number on the contact page.

SiriusXM says suspicious emails can be forwarded to [email protected]. If you already clicked or entered details, it advises changing your SiriusXM password immediately, logging out of all devices, updating the password anywhere else you used the same combination, and contacting your bank or card issuer if you gave financial information.

Troubleshooting Common Activation Issues

Problem	Possible cause	Fix to try
Channel 0 shows no ID	Different menu on your make	Use the make table, check the manual, or ask SiriusXM Listener Care
Signal sent but still no audio	Antenna lacks sky view, or radio was off during the signal	Park in the open, keep the radio on and tuned to the preview channel, resend
Account shows no vehicle	Subscription no longer linked to a vehicle	SiriusXM has a help article for this; use it or chat with Listener Care

Keep reading

• How to Switch Sirius to New Car: A Step-by-Step Guide
• How to Transfer SiriusXM to Another Vehicle (Online, Phone & Cost)
• How to Transfer SiriusXM to a New Car: Turnkey Steps and Fees

Frequently Asked Questions About Activating SiriusXM

How Do I Get My Radio ID for SiriusXM?

On most radios, tune to channel 0 and the Radio ID (also called the ESN or RID) appears on the display. If channel 0 shows nothing, SiriusXM lists make-specific menu paths on its Find Radio ID help page, for example holding the SAT button for more than 3 seconds on 2003-and-newer BMW radios or choosing Settings and then SAT information on some Land Rover models.

How Much Is the Activation Fee for SiriusXM Radio?

The SiriusXM help pages used for this guide do not list a separate activation fee for a trial in a factory-equipped vehicle. Fees and plan prices change, so read the offer terms shown on siriusxm.com or read to you by SiriusXM before you confirm anything, and ask the agent to state every charge.

How Do I Activate SiriusXM in My Car?

Find your Radio ID, park where the antenna has a clear view of the sky, tune the radio to the preview channel (channel 184 on Sirius radios, channel 1 on XM and SiriusXM radios), then send a signal from siriusxm.com or call SiriusXM at 1-800-689-6881. Tune to channel 4 to check: if you hear audio, no further steps are needed.

Can I Activate SiriusXM Without Calling?

Yes for most steps. SiriusXM’s help pages link to an online form to send a signal to your radio and an online page to start a new trial, and SiriusXM’s contact page lists a 24/7 online chat. You can still call 1-800-689-6881 (8 am to 8 pm ET daily) if the online route does not work.

Is a SiriusXM trial in a new car refundable?

SiriusXM states that trial subscriptions included with vehicles are non-refundable and non-transferable. If you return or sell the vehicle before the trial ends, contact SiriusXM so it can update the account.

Can I get SiriusXM if my car has no satellite radio?

Yes. SiriusXM says a streaming-only plan works through Apple CarPlay, Android Auto, an aux or USB cable, or Bluetooth audio. A cellular data plan is also required to stream without Wi-Fi.

Conclusion

Activating SiriusXM comes down to three facts: the Radio ID, an antenna with sky view, and a signal sent from siriusxm.com or by phone. Start with the free refresh and the channel 4 check, and only then look at plans. For the official versions of the steps, see SiriusXM’s Find Radio ID help page and the Mazda Connect SiriusXM manual page for an example of a maker’s instructions.

What this guide does not cover: prices beyond SiriusXM’s published offer, vehicle-specific menus for makes not listed above, and commercial or marine accounts.