I have to swap the 30-pin cord out for a Lightning connector. I have Apple's 30-pin-to-Lightning adapter, which is the only decent solution to their idiotic removal of the headphone jack because it restores the audio line out and power in at the same time.
It's academic at the moment because I have to pull the engine out of the car to replace the heads; a bunch of Ford engines had a defect where they blow spark plugs out, destroying the hole in the cylinder head.