Thinking about upgrading stock radio to CarPlay. Does anyone know if there are existing outputs on the stock radio. USB out or audio out jack somewhere? I check the glove box but couldn’t find anyway. Do these exist begin the unit?

also my radio seems to stay on even after the shut the car off. Anyone know what’s going on?

 

no usb or outputs on the stock radio.
as for the power staying on with the factory radio it should turn off once the door is opened. if it does not i would suspect the door switch to be faulty or dirty.

 

RAP, look it up and how it works, READ your Owner's Manual. Then check the door switch.

OEM Radios are OLD and have zero of today's input options.

 

YES!!!=The factory H3 radio is old technology.
I installed an $80- 7 INCH double din car stereo from AMAZON 2 years ago, using the existing speakers on my H3= Even comes with a back-up camera----Great sounds for $80