hi just left a electronics shop that was trying to install my avh-4100nex,installer could not get it to power up ,he showed me that it had powerat red wire , it was grounded and yellow had power with a tester at plug at back of unit ,fuse was good too ,any ideas ,i took it out of my last truck and was working fine ,have a hole in my dash never reinstalled factory radio lol thanks

back to top ,no body have any ideas

I think your audio unit is dead! Truck have 24v. Audio unit wirking at 12v.

I think your audio unit is dead! Truck have 24v. Audio unit wirking at 12v.

lol my truck does not have 24v,it is a 12 volt system

Did he try to power it on a bench to see if it power up??  Should only need to connect red, yellow and black.

yes i tried that today no luck,into shop i guess