How to install an FM modulator in your car. Car Radio Converter FM For Japanese Radio Receiver / 94-108MHz FM Converter For Japan Comand Aps. Murray pope: can you tell which expander to get there are so many. Band expanders 'shift' FM radio signals used in New Zealand to the frequency range used in Japan. Show Me Show All 10 MHz 12 MHz 14 MHz 18 MHz 24 Volt American 0.1 MHz European Honda Mazda Mitsubishi Nissan Standard Subaru Suzuki Toyota.
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For those of you who have not read the 'How to Dismantle the Tezza Dashboard' you need to before this section.It can be found here:First the little I know about expanders:There are apparently powered and non powered expanders. This post will shows how to install the powered kind.There is also a difference in the frequency expansion. I know of 14MHz expanders and 18 MHz expanders. The picture below shows a 18MHz expander.You will notice the inscription says INPUT: 94-108 MHz OUTPUT: 76-90 MHz.In simplified terms this means the expander enable the radio to pickup frequencies between 94-108 though your display will continue to show 76-90 MHz. (So if you want channel 102.5 you will tune the radio to 84.5 - Just add 18 to obtain the right freq being displayed).Of course if it were a 14 MHz expander you'd add 14 to the displayed freq to obtain the correct freq.Here's another view of the expander explaining where the cables should be connected.Now that the dashboard is dismantled, You will need to locate the ports and connectors to which the cables of the expander is to be connected.The hardest is the source of power. You will need a multimeter/voltmeter. There are two connectors at the rear of the head unit.Use the multimeter to probe the metal contacts of the two connectors with the ingnition on (Connect the black probe to the any exposed metal connected to the chassis touch each metal contact on the connector with the red probe).You should find two contacts reading 12V.
Switch the ignition off and probe the two contacts reading 12V again. One will not have a reading. That is the one to which you will connect the power cable for the expander.The above picture shows where on the '02 Tezza this power source is.confirm before the connection is made.The expander I bought had a nifty device for connecting the cables without having to cut and splice the cables.
It is the blue dohicky seen in the pic below below. If you can't source one of these then you have to splice the power cable to the rear of the ignition cable identified with the multimeter above.That being done no all that is needed is for you to connect the antennae to the expander (see pic of expander connections above) and connect the expander to the antennae port on your head unit (see pic of head unit rear view).You are good to go.I used a tie wrap to position the expander out of the way of the head unit.Before assembling everything do yourself a favour and do a test run. Wouldn't want to have to take everything apart again to fix problems.;)That's it your done.
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March 2023
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