Audio and Auto: How In‑Car Listening Drives Real Purchase Decisions

insights-auto-industry
Broadcast Radio

Key Takeaways

  • Audio reaches auto buyers in the car, when attention is high and decisions are forming.
  • Driving is a meaningful daily habit. The average U.S. worker spends 55 minutes commuting each day, creating repeated moments for influence.
  • Americans are ready for their next ride. The average vehicle age in the U.S. is 14.2 years, signaling growing, pent‑up demand.
  • Radio helps automotive brands stay top of mind while consumers are shopping on the biggest lot there is, the roads and highways.
  • Case study: One local new‑car dealership activated a total audio strategy built around trust, relevance, and in‑car influence and saw +23.3% increase in online search active users, +145.1% increase in online search conversions, and ranked #1 in new units sold within a 35‑mile radius.

Why Audio Still Matters for Automotive Marketers

Automotive marketing is built on timing, trust, and relevance. Consumers rarely wake up planning to buy a car that day, but decisions start forming long before the search begins. Audio plays a unique role in that journey.

Radio and podcasts are daily companions, present during commutes, errands, school drop‑offs, and road trips. That consistency matters in a category where purchases are emotional, practical, and considered over time.

Audio allows automotive brands to show up repeatedly, building familiarity and confidence well before a consumer shows intent to buy.

Where Automotive Decisions Really Happen: In the Car

The car is both the product and one of the most powerful media environments available to automotive marketers. Did you know that more Americans listen to radio today than 20 years ago?  

Broadcast radio continues to dominate in‑car listening, accounting for the majority of ad‑enabled audio time spent behind the wheel. Driving is not an occasional activity. It is a core part of everyday life.

On top of that, the average U.S. worker spends 55 minutes commuting daily, much of that time spent listening to audio. Those minutes add up to consistent, high‑attention moments where brands can connect without competing for visual focus.

Audio fits naturally into the driving experience.  

In‑Car Listening Is a Powerful Moment to Influence Purchase Decisions

In‑car listening represents one of the most influential moments in the automotive consumer journey.

Audio, especially broadcast radio, helps brands stay present while consumers are driving, commuting, and passing dealerships in real time. It keeps brands top of mind while consumers are shopping on the biggest lot there is, the roads and highways.

Unlike screen‑based media, audio aligns with the moment. Messages feel relevant, trusted, and timely, which is why radio continues to be the most impactful audio medium in the car.

For automotive marketers, these are moments where consideration takes shape.

Radio Fuels Auto Consideration

A Critical Mass insights study looked at when auto intenders make decisions, and radio’s impact on their choices. We learned that:  

Auto brand loyalty has declined, and shoppers are more open to considering multiple brands due to rising costs and incentives.  

Even for brands with traditional loyalty, tarriffs and price volatility are reshaping consideration sets.  

Loyalty is still valuable, but brand perception and value matter more than ever in purchase decisions.  

So what does this all mean for brands? With 75% of consumers saying they trust their favorite radio hosts more than people on other media platforms, and 90% saying that trust in other humans can’t be replicated, we know audio is a critical piece to a successful media mix.  

Americans Are Ready for Their Next Ride

The opportunity in automotive is building in plain sight.

Americans are holding onto vehicles longer than ever. The average vehicle age in the U.S. is now 14.2 years, creating clear pent‑up demand across the category. Consumers may not all be actively shopping today, but many are getting closer to a decision.

This makes consistent audio presence more important than ever.

As consumers spend nearly an hour a day behind the wheel, audio keeps brands present during the exact moments when aging vehicles start to feel less reliable, less efficient, or less aligned with their needs. When that moment arrives, familiarity matters.

Audio advertising helps shape intent.

Reaching the Auto Buyer Before They Raise Their Hand

One of the biggest challenges in automotive marketing is timing. Only a small share of consumers are actively shopping at any given moment, yet a far larger group wants a new vehicle. This gap between desire and action is where audio delivers outsized value.

Radio and podcasts reach massive audiences every month, allowing automotive brands to build brand health with future buyers. That presence ensures trust and familiarity are already established when the decision window opens.

Trust Turns Reach Into Results

Automotive is a trust‑driven category. Consumers are making one of the largest purchases of their lives and want confidence in the brand and the message behind it.

Audio delivers trust through real voices.

Listeners consistently say they trust radio and podcast hosts, including their recommendations. Host‑read messaging feels personal and authentic, closer to word of mouth than traditional advertising.

In new research between iHeartMedia and Omnicom, we learned that longer host-read executions deepen message retention and accelerate purchase among high-intent consumers. Longer host-read executions generated twice the recall of 30 second, host-read ads and were associated with faster purchase timelines among listeners already inclined to buy.

That trust drives response. It moves consumers from awareness to action, whether that means visiting a website, stopping by a dealership, or scheduling service.

Audio Supports the Full Automotive Funnel

Audio is not limited to brand awareness. It actually supports performance at every stage of the funnel.

Brand lift studies show audio drives measurable gains in awareness, consideration, ad recall, and brand actions. Audio also strengthens other channels. Consumers exposed to audio are more likely to notice and engage with digital, social, and search messaging later.

For automotive marketers managing complex media mixes, audio acts as the foundation that makes everything else work harder.

Case Study: Driving Immediate Results With an Influencer‑Led Total Audio Strategy

To see how in‑car audio translates into real business outcomes, one local new‑car dealership activated a total audio strategy built around trust, relevance, and in‑car influence.

The Goal
Drive foot traffic from high‑intent shoppers while increasing dealership visibility across the market.

The iHeart Solution

  • Activated host‑read spots on a top‑performing local station
  • Ran the campaign across broadcast radio and streaming audio
  • Focused messaging on brand quality and flexible financing
  • Leveraged a trusted iHeart on‑air personality to deliver the message
  • Extended reach beyond the immediate trade area to capture broader in‑market demand

By placing a trusted voice into high‑engagement, in‑car moments, the campaign met consumers when relevance was highest.

The Results

  • +23.3% increase in online search active users
  • +17.0% increase in total online search sessions
  • +145.1% increase in online search conversions
  • +15.8% lift in engaged website sessions
  • +7.9% market share growth
  • Ranked #1 in new units sold within a 35‑mile radius

Why It Worked
The campaign succeeded by combining trusted human voices, in‑car moments, and consistent audio presence that reinforced the brand before and during active shopping moments.

FAQs

Why is in‑car audio so effective for automotive advertising? 
Audio reaches consumers while they are driving, commuting, and passing dealerships, often minutes before they act.

How much time do consumers really spend in the car each day? 
The average U.S. worker spends 55 minutes commuting daily, creating repeated, high‑impact moments for audio messaging.

What does vehicle age have to do with audio strategy? 
With the average vehicle age at 14.2 years, many consumers are approaching a purchase decision, making early brand presence critical.

Is audio only useful for awareness? 
No! Audio supports the full funnel, from awareness and consideration to action and sales. Even better, audio measurement solutions exist for every KPI and channel.

At iHeart, we make it easy to prove ROI across every audio channel and measure everything from traffic to conversions, store visits, sales impact, and more.  

Ready to Drive Results With Audio Ads?

Audio connects automotive brands to consumers through trusted human voices, at scale, during the moments that matter most.

Want to reach auto buyers through audio that drives real‑world action? Connect with our team today.

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