Reply to thread

Message

<blockquote data-quote="daveyp225" data-source="post: 6053295" data-attributes="member: 568483">Thanks for the helpful replies. I went out to check again and realized I made a mistake in my description. I have both the red and yellow power wires running from the head unit to the red/ACC from the harness.I wasn&#039;t doing &quot;trial and error&quot; per se. It was an accidental connection. I knew both lines had the same voltage so I figured it was safe. This can be dangerous in general, I know.I have come to 2 conclusions, which may be incorrect due to my limited knowledge.1) Since the red incoming line has power, and my HU will still not power up with this only connected, both the Yellow and Red wires on the HU must be connected to power.2) The &quot;correct&quot; wiring method did not work, but running both the red and yellow from the HU to the incomming red/ACC did work. I feel this implies the yellow/constant incomming power is not working. I cannot see any broken connections, so I&#039;m leaning towards the harness being the problem.If #2 above is correct, could I bipass the harness? If so, which color wire is the &quot;constant power&quot; in the factory harness? I notice Ford uses different colors for the other side of the adapter.I noticed my ground wire came off, and that could be why it was overheating. I really would like to solve this, since I think I figured out that Constant power is used to save information/settings/power-off state. With the above rigged method it powers on into &quot;Demo mode,&quot; which did not happen when it was installed in the previous vehicle.Thanks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif.</blockquote>

[QUOTE="daveyp225, post: 6053295, member: 568483"] Thanks for the helpful replies. I went out to check again and realized I made a mistake in my description. I have both the red and yellow power wires running from the head unit to the red/ACC from the harness. I wasn't doing "trial and error" per se. It was an accidental connection. I knew both lines had the same voltage so I figured it was safe. This can be dangerous in general, I know. I have come to 2 conclusions, which may be incorrect due to my limited knowledge. 1) Since the red incoming line has power, and my HU will still not power up with this only connected, both the Yellow and Red wires on the HU must be connected to power. 2) The "correct" wiring method did not work, but running both the red and yellow from the HU to the incomming red/ACC did work. I feel this implies the yellow/constant incomming power is not working. I cannot see any broken connections, so I'm leaning towards the harness being the problem. If #2 above is correct, could I bipass the harness? If so, which color wire is the "constant power" in the factory harness? I notice Ford uses different colors for the other side of the adapter. I noticed my ground wire came off, and that could be why it was overheating. I really would like to solve this, since I think I figured out that Constant power is used to save information/settings/power-off state. With the above rigged method it powers on into "Demo mode," which did not happen when it was installed in the previous vehicle. Thanks [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG]. [/QUOTE]

Verification