Standard Box style 20MHz - Car Radio FM Band Expander

Tax included

Part Number: BOX-20

Our Standard Box FM Band Expander is the 'original' Domino Electronics Band Expander and was universally used in most vehicle radio’s up until about 2005, at which time vehicle manufacturers started using their own style of plug in the original Japanese radios. However, these are still used in some vehicle radio’s in later model vehicles.

You will find our Standard Tube and Standard Box FM Band Expanders smaller with a stronger more stable signal than others in the market.



All our Band Expanders are dual tested to ensure you receive the highest quality product.

Box dimensions: 32mm x 22mm, Depth 18mm

Weigh approximately 35grams, which makes them ideal for shipping and small for added ease of fitting.

Suits any vehicle using the standard round aerial connector.


Available in 10Mhz12Mhz14Mhz15Mhz15.5Mhz16Mhz16.1Mhz18Mhz and 20Mhz.


Please Note

This will not change the digits on the radio, so you need to calculate station to tune to.
eg. to get 98.7, you minus off 10 and therefore tune the radio to 88.7

AM Frequencies are unchanged.

You can still receive stations within 76-90 if there is not a station 10MHz above it.

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