found this in my car?

hey guys i was cleaning my car out today in the back of boot i came across a lil box thing saying FM extend 10MHz converter?

what is this i tryed looking up on google but no luck

thanks

 

Allows you to pick up Australian radio, Japanese radio operates on a different set of frequencies.

 

oh ok thanks mate

 

If you replace the deck with an aftermarket Australian one, do you need to remove the item?

 

Pretty sure you don't.

 

Yes you do. Unless you want your radio to be out by 10MHz of course

 

Oops.