Simple JOIN query help

I have 4 tables
[LIST]
[]car-audio
[
]electronics
[]novelties
[
]wheels-tires
[/LIST]

they all have a column called caption. i want to make a query like this:

SELECT * FROM wheels-tires, car-audio, electronics, novelties WHERE caption LIKE “%apple%”

but it tells me its ambigous.

how can i fix it? im reading about inner joins and commands like that but can’t come up with the right one.

please help.