I've fixed my app radio finally !!!!!!!!!

Fixed screen speckles when driving on bumpy roads

Fixed connection issues where Bluetooth would connect but not apps

The fix is dead simple

Throw away the supplied HDMI and lightning wire supplied by pioneer and use a real apple lightning and ANY HDMI ( I used a ASDA / Walmart own brand ). The radio actually works as it should with no cutting out or frustrating connection errors.

it was only the HDMI cable shitty HDMI cables will give you sparkles no matter the device. The lighting cable only supply's power to the digital AV adapter to your phone.