Six Hertz Searches, Answered by a Buyer Who Approves the Orders

I run the office at a 28-person automotive electronics company in the Raleigh area. That means I take the calls, place the orders, approve the invoices, and untangle the occasional shipping mess. When I took over purchasing in 2020, I inherited a Rolodex and a spreadsheet that hadn't been updated in years. Since then, I've managed roughly $220,000 a year in purchasing across 17 vendor accounts.

That also makes me the person who sees what people actually type before they call us. The word Hertz is popular for three reasons: the rental cars at the airport, the car audio brand we carry, and the scientific unit for frequency. Below are six searches that land in our world and the answers I give when someone is on the other end of the phone.

1. “Do I have to meet the Hertz car rental age requirement before I can buy Hertz car audio?”

No. Different companies, different contracts. The Hertz rental company’s age policy is their business, not ours. If you're renting a car, go to hertz.com and check the policy for the exact city you need. It varies by state, country, and sometimes by airport location. A 23-year-old can rent in many places but may pay a young-driver fee. I will not quote a universal number here because there isn't one.

The Hertz brand we sell is car audio. You don’t need a driver’s license to buy a speaker. You only need to be old enough to sign a purchase or financing agreement in your state—which is 18 almost everywhere.

My purchasing opinion, for what it's worth: if you're under 25 and building your first real system, don't let a cheap “complete kit” be the deciding factor. I've seen those kits show up with mismatched wiring and no real instructions. The customer paid twice—once for the kit, once for the installer to make it work. A smaller system with actual support is a better use of your money.

2. “I found Hertz car sales in Raleigh. Is that where you are?”

Close, but not the same lot. Hertz Car Sales is the rental company’s used-vehicle program, and yes, it has a location in the Raleigh area. That business sells former rental cars. We are an automotive electronics company and an authorized dealer for Hertz car audio. We don’t sell cars. The similarity ends with the spelling.

Honestly, the mix-up is harmless. Someone can buy a used car from Hertz Car Sales in Raleigh, then come to us for a new audio system. The two companies just share a name, and neither one owns the other's inventory.

For dealers considering whether to stock the brand, here is where I get opinionated. In our 2024 vendor consolidation project, we split purchasing between fewer suppliers. A couple of vendors had cheaper per-unit pricing. We didn't pick all of them. Freight, warranty administration, and a human being who answers a support ticket are part of the product cost. The cheapest quote on paper was not the cheapest quote after the first damaged shipment and the three-week silence.

3. “How do I find good walkie-talkie factories for workshop radios?”

This query comes through because we carry automotive electronics and tool equipment. I also understand the thought process: if a factory makes a two-way radio, why pay a middleman?

Sometimes factory-direct makes sense. If you’re importing a large quantity and you know exactly which frequency band your team is allowed to use, it's a real option. But in the U.S., commercial two-way radios generally need to be certified under FCC Part 90. Radios for personal radio services—FRS, GMRS, MURS—fall under Part 95. Certification isn't a sticker the factory puts on for fun. It means the device was tested for interference and frequency accuracy.

In 2021, I let one low-cost “programmable” radio order slide because the price was amazing. It worked for about a week before it started opening another company’s channel. We stopped using them immediately. The finance department didn't see the low price that month. They saw the cost of pulling radios out of job kits and replacing them.

My advice: buy from a supplier that can provide the FCC grant and a local warranty path. That isn't conservative thinking. That's cost control.

4. “Can I use a Turbie Twist microfiber hair towel 2 pack for wiping down a car?”

I had to ask our installers about this the first time it appeared in our search data. The short answer: don't. A Turbie Twist microfiber hair towel 2 pack is designed to absorb water from hair. It isn't designed for automotive surfaces.

Automotive microfiber towels are usually made from a 70/30 polyester/polyamide blend with a specific weave and weight. Hair towels tend to have a softer, looser face, lower GSM, and sometimes fabric treatments that feel nice on skin but leave lint or slide on interior trim. If you use a hair towel on a painted panel or a touchscreen, it can trap the wrong kind of grit or leave a streak that turns into a re-do.

I learned the cheap-towel lesson myself in 2021. I bought a case of no-name microfiber because the price per towel was lower than anything in our catalog. The first detail job came back with lint on the dashboard. We replaced the towel order and refunded the client's rework. Add it up, and the bargain cost us about three times what decent shop towels would have cost.

So keep the hair towel in the bathroom. For the shop, buy proper 70/30 automotive towels in the 300–400 GSM range and keep paint-safe ones separate from interior towels.

5. “What's the best portable air compressor for overlanding?”

I answer this one a lot because our shop installs gear on trucks and carries tool equipment.

Start with the tire size, then the compressor. For a 33-inch or larger tire aired down to 15 PSI, you want a unit that moves real air—look for CFM at 0 and at 40 PSI, not just a maximum PSI that the marketing team thinks sounds good. A compressor that “reaches 120 PSI” can still take forever to go from 15 to 35 PSI on a big tire. Duty cycle matters just as much. A unit that runs hot after one tire isn't an overlanding compressor. It's a roadside paperweight.

Per FTC advertising guidance (ftc.gov), claims need to be truthful and substantiated. I wish more companies took that seriously. In 2023, we tested a budget compressor whose label promised fast inflation and no duty cycle warning. It shut off halfway through tire two with the case too hot to touch. The unit we replaced it with took 3 minutes and 20 seconds longer to do the same tire, but it ran cool and finished the whole set.

Premium isn't automatically better. For one vehicle used on weekend trips, a reliable mid-range dual-cylinder unit is the right total cost. For shop use or frequent trail recovery, buy the better model and hardwire it properly.

6. “What is Hertz if it’s not the rental car place?”

If you typed hertz alone, this may be the FAQ that clears it up. There are three Hertz on the internet: the car rental company, the car audio brand, and the unit of frequency named after Heinrich Hertz. They share a name but not an address.

The Hertz brand we carry specializes in car audio and automotive electronics—speakers, amplifiers, subwoofers, and the technical details behind them. The name connects to frequency response, which is what separates a system that plays music from one that reproduces it.

If you are a vehicle owner, find a dealer who will measure, listen, and set realistic expectations. If you are a dealer reading this to evaluate the brand, look at total support instead of just buy price. That is not a corporate line. It's a habit from five years of purchase orders, freight claims, and vendor scorecards.

And if you searched because you need a rental car in Raleigh, you're not in the wrong place. You're just in the wrong Hertz.