Am/fm Confusion ....

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Jul 30, 2005 | 11:47 AM

alchymist

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"Mifflin Clay"

Joined: Jul 2005

Posts: 3,177

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From: Mifflin, PA

Am/fm Confusion ....

Just swapped out my AM/FM radio (stock with the XL), for an AM/FM/CD unit from a 2005 F250. Everything works fine, but - (always a but, isn't there?),
I noticed an extra connector on the pack of the CD unit that isn't on the AM/FM. Any idea what it's for? Perhaps rear speakers, aux inputs, etc? Anyone have pinout info?

Also noticed that two of the lower buttons are marked FF and RWD. So, how does a cd fast forward or rewind? Perhaps the extra connector was for a seperate Cassette unit? Also noticed the new unit has some functions the old one didn't - Speed Volume, autoset, among others. Can anyone shed some light?

Last edited by alchymist; Jul 30, 2005 at 11:49 AM. Reason: typo

Jul 30, 2005 | 12:53 PM

n578md

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From: Allen, Tx

The CD does FF and RWD, it skips track audibly slowly and then fast after 10 seconds of pressing FF or RWD.

I'm not sure if you have the correct wire harness in the 2-speaker/AM-FM XL's. My truck came with a 4-speaker/AM-FM-Cassette so the swap to a CD player was easy.
Here's the pinout for a 2003, maybe it's the same on the 2005's?

Pin Circuit/Color Description
1 19 (LB/RD) Instrument Ilumination
2 57 (BK) Instrument Ilumination Ground
3 1000 (RD/BK) Voltage Supplied In Start (Overload Protected)
4 n/a Not Used
5 825 (TN/LG) Right Rear Speaker +
6 803 (BN/PK) Right Rear Speaker -
7 805 (WH/LG) Right Front Speaker +
8 811 (DG/OG) Right Front Speaker -
9 797 (LG/VT) Constant Voltage (Overload Protected)
10 194 (PK) Accessory Delay Relay/Switched Output
11 694 (BK/LG) Ground
12 827 (TN/WH) Left Rear Speaker +
13 801 (TN/YE) Left Rear Speaker -
14 804 (OG/LG) Left front Speaker +
15 813 (LB/WH) Left Front Speaker -
16 694 (BK/LG) Ground

Plug facing you, pin numbers. (That's the best I can do in a text editor, sorry. Use your power of poetic imagery...)

8
- - - - - - - -
- - - - - - - -
16

Last edited by n578md; Jul 30, 2005 at 01:08 PM.

Jul 30, 2005 | 01:15 PM

Drone Leader

Senior User

Joined: Jun 2005

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From: ABQ NM

Speed volume is a cool idea: Turns the volume down as you slow down, and turns it back up as you speed up to account for road noise. Implementation is another story. I suspect that's why my mom's F-150's system cooked itself to death, always very warm over the player.

Jul 30, 2005 | 02:48 PM

Rongold

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Joined: Dec 2004

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From: Putnam Valley, New York

Radio

The extra connector on the new radio is probably for steering wheel controls.

RON

Jul 31, 2005 | 09:58 PM

johnw

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Joined: Apr 2005

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I have a 2005 f250 xl and added the 6 disc cd player. just go to the dealer and buy the two rear speakers and plug them in. my truck had the wiring in place with a plug connector that plugs onto the speakers. john

Jul 31, 2005 | 10:18 PM

Ford_Doctor

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Joined: Mar 2005

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From: New Jersey

Quote:

Originally Posted by alchymist

I noticed an extra connector on the pack of the CD unit that isn't on the AM/FM. Any idea what it's for? Perhaps rear speakers, aux inputs, etc? Anyone have pinout info?

If your truck was equipped with rear audio controls and the DVD player, there is a harness that runs from the rear of the lower console under the carpet and up to the radio. This harness uses that connector and will only work with the two upper level radios. The AV system components are usually found in the Explorer, Expedition and the Excursion. Most external controls like the steering wheel controls use a network to function. The DVD system with the rear audio controls in the back of the console do as well but they have their own wiring.

Aug 1, 2005 | 04:56 AM

alchymist

Thread Starter

"Mifflin Clay"

Joined: Jul 2005

Posts: 3,177

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From: Mifflin, PA

Thanks for all the help, guys, I'll have to check to see if the wires are in the rear doors. There is no second connector beneath the dash, for sure.
'05 F250 XL, don't know the build date.