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The top tech that fueled Katy Perry's halftime show

If there is one thing that Jim Cramer learned from watching the Super Bowl, it is that 2015 is the year of the connected car.

Remember that Chevy ad that aired right before the game, where it looked like your TV cut out and then the commercial explained that you could stream the game instead using the 4G Wi-Fi in a new Chevy Colorado?

That wasn't an ad for a fancy car. That was an ad for the new in-car infotainment system.

Cramer sees that these car infotainment systems have gone from luxury accessories to near necessities this year. He is willing to bet that in five to 10 years from now every new car will have one.

This explains how a stock such as Harman International rallied 26 percent last week, amid an ugly market. Harman is the leading provider of automobile infotainment systems.

Harman is not an automobile parts supplier; it is a technology company that sells to the automobile industry. It is connectivity for the car.

Katy Perry
Lucy Nicholson | Reuters
Katy Perry

One would think that these technology installations would be easy to copy, but that is not the case. Harman is sitting on thousands of patents, which makes its product proprietary in nature.

In fact, about 70 percent of Harman's business is software, which allows it to bundle navigation, safety and wireless connectivity into a single system.

Harman also has its own audio business where it makes high-end sound systems, known as AKC, Harman/Kardon, JBL and Yurbuds. It also makes sound systems and lightning controls for big venues and gigantic arenas.

"Think the Grammys, the Country Music Awards, and yes, last night's Katy Perry-fueled Super Bowl halftime show, which I thought was the best ever. But what do I know?" Cramer said.

Another reason why Harman was on fire last week was the constant negativity of analysts at Morgan Stanley. These bears have had an underweight rating on the stock since March 2012, when the stock traded under $50. It has since rallied almost 175 percent. What will it take to wake up these bears from hibernation?

Nevertheless, Harman only trades at 18.5 times next year's earnings estimates, which Cramer thinks is pretty cheap considering it has an 18.6 percent long-term growth rate and keeps beating analyst estimates.

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"I still think the stock is worth buying at these levels, although obviously I'd like it even more if gets taken down by the next inevitable marketwide pullback," said the "Mad Money" host.

So, keep this one in your back pocket for the next down day, because Cramer thinks Harman is at the epicenter of the biggest tech theme of the year. It's not just involved with connectivity to cars, it is connectivity.

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