Take a look at the wiring diagram. We are going to need to trace power back to the EFI relay. If you have power there then I suspect you have a wiring issue. So I would jump power directly from the relay to the amp.
Clearly I think you found your issue, now we just need to find out why you don't have power there and the relay is the most likely cause.
Let us know what you find. Thanks
Wednesday, August 26th, 2020 AT 7:35 PM