Rear speaker harness wiring - Ford Transit USA Forum
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post #1 of 8 (permalink) Old 12-04-2016, 10:28:PM Thread Starter
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Rear speaker harness wiring

If your rig did not come with rear speakers, the BEMM leads me to believe that there is an inline connector somewhere (p97) which allows you to tap into the inline harness to connect to the HU connector. Does this sound right? If so, do you have any idea where this inline harness could be?

Thanks.

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post #2 of 8 (permalink) Old 12-04-2016, 10:56:PM
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When I put in my aftermarket double DIN radio, there were no wires at the radio for rear speakers.

2015 T250 MR cargo w/windows, LS. Purchased new 9/2016. Richmond, CA
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post #3 of 8 (permalink) Old 12-04-2016, 11:24:PM Thread Starter
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Originally Posted by surly Bill View Post
When I put in my aftermarket double DIN radio, there were no wires at the radio for rear speakers.
Me neither, but if you look at p.97 of the BEMM there is some implication in my mind that there is a upstream inline connection from the 24 pin to wire into the rear speaker wires on the 24 pin harness. That would be really convenient if there were. I'm wiring in my unit this week.
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post #4 of 8 (permalink) Old 12-04-2016, 11:32:PM
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a quick search box search brought up this, which is correct according to my notes, but others have said in other threads that the colors change at a harness plug between the front and the back. the fourth post down matches my notes at the rears speakers themselves: Radio wiring colors

2016 transit cargo 250 MR, LWB, 3.5 eco, 3.31 limited slip

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post #5 of 8 (permalink) Old 12-05-2016, 01:33:AM Thread Starter
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Originally Posted by Michael Ophus View Post
a quick search box search brought up this, which is correct according to my notes, but others have said in other threads that the colors change at a harness plug between the front and the back. the fourth post down matches my notes at the rears speakers themselves: Radio wiring colors
Yes, but what if your vehicle wasn't wired for rear speakers? Mine wasn't. Nothing is in my rear doors. t think there's an inline connector upstream of the 24 pin connector somewhere under the dash (at least that's what the BEMM leads me to believe). I'm asking if this is the case and where is it. If you guys dunno, I'll check under my dash when I have it apart again this week. At least I'll be able to see if there's wires going to the 24 pin. If there ain't, I guess there's no inline connector either.

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post #6 of 8 (permalink) Old 12-05-2016, 06:14:AM
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if i read this thread right? you need the CD radio prep package that comes with the harness for 6 speakers. lots of talk about plugs but i am not sure if they are the plug you are looking for, or if that plug is even there without the CD prep package? Radio Prep Package - Stereo Install

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post #7 of 8 (permalink) Old 12-05-2016, 05:16:PM Thread Starter
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Originally Posted by surly Bill View Post
When I put in my aftermarket double DIN radio, there were no wires at the radio for rear speakers.
Sorry, maybe I misunderstood. For clarity, are you saying there are no wires going into the 24 pin connector for the rear speakers? If that's the case, then I'm out of luck. If there are, it'll save me an extra connector. I'll look at it this week.

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post #8 of 8 (permalink) Old 01-07-2017, 08:44:PM
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swellguy... Did you find anything? I have a 2016 cargo van with the basic radio, only (2) front speakers. I installed a new double din radio today. The existing wiring harness did have the wires there for rear speakers. I checked the rear door panel, no wiring. I assume there is a connector somewhere to pick up for rear speakers. If you found it, please let me know.
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