JONPARTS guides
Buying guides
Do Car Key Covers Affect Your Insurance or Stop Relay Theft?
A protective cover and a signal-blocking pouch are different products with opposite jobs. Which one matters for keyless theft, and what insurers actually ask about.
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Are Key Fob Covers Worth It? An Honest Answer
We sell these, so treat this accordingly - but there is a real case for and against, and the honest version is more useful than the sales version.
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Audi Key Fob Cover Guide: 8Y, B9, Q-Series and e-tron
Audi split its key into two families around 2020. Knowing which side of that line your car falls on is most of what you need to order the right cover.
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Porsche Key Cover Guide: 911, Macan, Taycan and Cayenne
Porsche has shaped its key like the car since 1997, which makes the differences between generations subtle and easy to get wrong. How to read yours, and what the color options are actually matching.
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Tesla Key Card or Key Fob: Which One Should You Protect?
Model 3 and Y owners carry a card. Model S and X owners carry a fob. They fail in completely different ways, and the protection each needs is different too.
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Alcantara vs Leather vs Carbon Fiber Key Covers: Which to Buy
Four materials, four different failure modes. A side-by-side on grip, wear, signal, cleaning and what each one actually looks like after a year in a pocket.
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Do Key Fob Covers Block the Signal? What Actually Matters
Two completely different questions hide behind this search: will a cover shorten my key's range, and can a case stop relay theft? The answers pull in opposite directions, and the material is what decides both.
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