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Old 02-21-2021, 05:17 PM   #1
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No power to stereo - E Series 2012

Went out last week and my after market unit was dead. Check fuses 39 & 41 under dash per the manual and they are good. Also have 14+V when running.

Unit was a cheapo Boss so I figured it died so Crutchfield swapped it our for a Jensen. Swapped everything out, wiring is correct, and this unit has no power.

Checked the power for the main harness and obviously I am not getting power there. Everything else on the dash is fine....all lights, cig lighter, etc.

I don't see any other fuses in the manual that should apply. What am I missing?
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Old 02-21-2021, 05:25 PM   #2
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There must be 12V on both ACC (red wire) as well as main power (yellow wire). These are 2 separate wires going into the radio. Have you verified you have power on both of these?
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Old 02-21-2021, 05:30 PM   #3
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I only checked the red (no power) as I didn't know about the yellow. Unfortunately I had to put the dash back together....I'd have to pull everything back out to check yellow.
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Old 02-21-2021, 06:02 PM   #4
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If you're using plugs to connect to the OEM harness, make sure one of the pins hasn't been pushed out the back of the connector. Also check the aftermarket part of the harness for an inline fuse, that's pretty common.
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Old 02-22-2021, 07:01 AM   #5
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I'm using the wiring adapter from Crutchfield, but I highly doubt that's the issue. I wasn't seeing 12V anywhere before that point. I guess I need to pull the dash AGAIN and check the yellow wires.

If I am not getting power at yellow or red I'm tempted to just use a couple 'add a fuse' parts and run power from the fuse box since I was getting 14+V there.

Any other thoughts or ideas would be appreciated.
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Old 02-22-2021, 06:41 PM   #6
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I am not above cheesing power off something else in the vicinity if I can't find the problem. You should be able to tap into the cigarette lighter wire, for example -- on my van that's unswitched (which would work for the yellow wire), but I don't know if that changed in the later ones. If you do that you might want to note it next to the fuse diagram so you know what's connected to what.
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