2001 Miata battery died and when I replaced it the radio no longer has any output. The antenna goes up and down, the display seems to operate normally, just no volume. Any ideas? I bought the car used and don't have any code information if that is the problem, but everything I have read says the word 'code' should be displayed and it isn't.

SOURCE: Mazda 3 (2006) Information Display panel is blank

06 MAZ 3 check the fuse marked ROOM15a ,,under the hood in the corner of the fuse panel, PULL IT OUT and change it whether blown or not ,,,,,should fix it ,,,,,,,,if the display is not bad

SOURCE: Mazda 3 Information Display

This really works...the fuse that controls the Information display power is the one labelled "ROOM" (15Amp). It is located under the hood in the engine fuses.

I didnt even replace mine, I simply scraped off the dirt/rust from the metal portion and reinserted it. If this doesnt work, test the ROOM port with a functional fuse switch (I used the one labelled HORN, 15amp). If it works with the switch, you have a good part, but need a new fuse.

Free solution to an expensive problem...if you dont know whats wrong.

SOURCE: Mazda 3 (2006) Information Display panel is blank

I took it to the dealer. They fixed under waranty. The new issue is the flash and beep confirmation upon double locking the doors no longer works.

SOURCE: i have a 2001 mazda miata. car dies out

Cam position sensor