Adding an Amp to Factory Nav - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 01-18-2012, 09:10 AM Thread Starter
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Adding an Amp to Factory Nav

I have an 08 F-350 with the nav and audiophile system. I'm keeping the factory head unit but have added a PAC Audio AOEM-FRD24 to convert my speaker level inputs to RCA. I am adding 2 10" JL shallow mounts with a supercrewsound box, but was also cosidering upgrading the door speakers and amping them as well. I know how I am going to install the subs, but what is the best way to tie the speaker amp into the factory speaker wires?
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post #2 of 4 Old 01-21-2012, 03:31 AM
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I'm going through this right now. After getting bad information (a rarity) from Crutchfield, I figured out that the factory Sync/Nav/DVD system DOES have an amp that is under the dash, to the left of the steering column. If you try to get the speaker level outputs from the back of the OEM head unit like I did, they are unamplified and will not be strong enough for a line level converter. I'm installing an Audio Control DQL-8 and after thinking the unit was defective, I called them and talked to their tech guy. He assured me that my problem was from a low level speaker input. He was right on. That said, the best place to tie into the factory wiring is at the amp. It's really tight in there, but with the driver's seat removed, I can lay on my back and get to the wires to patch in the new wires to the line converter, and then the new wires from the amp back to the factory harness so the amplified speaker signal goes through the factory wires to the speakers.

2010 F350 CC SWB FX4 loaded... Truxx leveling kit with an Icon adjustable trackbar, 20X10 XD Monsters with BFG 285X65X20 AT KO's, S&B intake, H&S Blackmaxx with DPF/Cat delete and MBRP Cool Duals, SD card full of KEM tunes that sits (unused) in the console. Audio by Focal, Audio Control, and JL Audio...


Last edited by thedynoguy; 01-21-2012 at 03:35 AM. Reason: more info
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post #3 of 4 Old 01-21-2012, 04:30 PM
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i just did a jl13 with alpine 1000,i used a audio control lc7 and tied in behind the headunit,i have the nav unit,maybe they changed something for the 2010.works like a champ.

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post #4 of 4 Old 05-03-2012, 10:36 AM
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So to add an LC7 am I splicing wires or is it simply moving plugs from factory positions to the lc7, running rca cables to an amp and letting the factory speaker wiring run the amplified signals?

Did you upgrade the door speakers?

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