How can I connect my phone to my car audio
Does a 2004 Toyota Corona does not have an aux adapter. what I do then?
If it doesn't have an aux port, or a cassette player, then get an FM transmitters. This will plug into the headphone jack on your phone, and transmit to your car radio. This is what I used to always do.
If your car audio/ radio has an input/ auxiliary jack on it, stock or aftermarket , it's usually located in the corner of your radio head unit. You will need an auxiliary jack cable to plug into your radio and depending on the type of phone you have look for an input jack near your charging port. I'm kinda flyin' blind here not knowing if you have a factory radio or aftermarket, menu push or scroll button to make audio adjustments, set time etc. Most aftermarket radio units would have and auxiliary port. Factory, most likely. Also I assume your radio unit isn't blue tooth compatible, which is the reason for the cable. Should you have a menu option scroll through until you find aux on your display. Plug it up, make sure your radio is set to aux, and listen from your phone. I know this is lengthy but I certainly hope it helps. I have an aftermarket JVC unit that's not BT compatible so I use a cable- radio head unit to phone- settings-aux. To make this more lengthy on-line retailers or auto parts stores have a BT adapter so you won't need a cable. Apologize for the book.