head unit wiring troubles need answers asap please

[white vn ss]

i have power from the battery line and the power line but when i put the test light on the negative pin nothing happened. does this mean i need to run a new earth?

 

[SweetWagon]

i have power from the battery line and the power line but when i put the test light on the negative pin nothing happened. does this mean i need to run a new earth?

did you test you have power on the acc wire when you put the key to acc? The earth wont have power because it is only used to complete the circuit. you should be able to use the one there if the previous unit was working else run your own but test that the new earth works.

 

[white vn ss]

yea did that. ill go run a new earth and see what happens.

 

[white vn ss]

well ran the new earth and all works fine thanks for the help vn6pwr. rep points are on there way.

 

[SweetWagon]

no problems, glad i could help