I want to connect my iphone to my car stereo that only has a 3.5mm aux input. I was going to get an aftermarket lightning to 3.5mm cable (the Apple one is too expensive), but was wondering if this would be safe to use? Since the lightning port is also used to charge the battery, I'm cautious about any possible damage or wear to the battery?
. Also, check the eq setting in your phone settings. I have found setting it to “off” nets the best result for auto or home stereo sound. Whether through a lightning/3.5mm or through lightning usb/carplay. Another thing to try is having your phone at 3/4 volume. Having the phones tiny little amplifier screaming away at your car radio will provide plenty of distortion, that doesn’t need to be there if you turn the phone down and car radio up.