inputs.text: first units display defective second unit great - second unit recieved works well great sound easy use interesting use navigation app pandora playing background not radio number apps limited not advertised available make sure power unit make sure works installing overall like unitthe first uniti spent hours wiring unit fj not workmore time spent verifying wiringfinally connected direct battery display still deadcd mechanism would cycle iphone would connect no displayi returned try different oneif next one works change rating