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Line level vs Speaker level amp inputs

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Old 06-18-2018, 10:25 AM
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Originally Posted by DanielHooks
I wish they would have RCA jacks with a remote trigger on the back for those of us who want to upgrade in the future.
Use Forscan to turn the speaker outputs from the OEM headunit to lowlevel and simply solder some female RCA's to the speaker wires (do a search, lots of how to info). Defeat the factory EQ while you are at it with Forscan. Fuse 23 on the passenger side is your remote wire (use an add a circuit fuse tap).
Old 06-18-2018, 10:35 AM
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Originally Posted by Kanadian-kaos
Use Forscan to turn the speaker outputs from the OEM headunit to lowlevel and simply solder some female RCA's to the speaker wires (do a search, lots of how to info). Defeat the factory EQ while you are at it with Forscan. Fuse 23 on the passenger side is your remote wire (use an add a circuit fuse tap).
Speaker wires are high level outputs. That will create a lot of distortion. That's why JL Audio made the Cleensweep unit to convert high level to RCA level outputs. It automatically detects when the radio is turned on and then has a remote turn on for the amplifiers. This Cleensweap is now replace with the Fix 82 and Fix 86.
Old 06-18-2018, 11:02 AM
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Nope. You did not read my post. Use the Forscan software to reprogram the Factory head unit. You can convert the high level factory speaker outputs to low level outputs with zero distortion. You can also get the signal flat by defeating the factory DSP. Then solder some RCA's onto the factory speaker wires which Forscan converts to low level.

For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx

Read post #41
Old 06-18-2018, 04:31 PM
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Originally Posted by Kanadian-kaos
Nope. You did not read my post. Use the Forscan software to reprogram the Factory head unit. You can convert the high level factory speaker outputs to low level outputs with zero distortion. You can also get the signal flat by defeating the factory DSP. Then solder some RCA's onto the factory speaker wires which Forscan converts to low level.

For the code, this is it:
ACM
727-01-01 xx5A xxxx xxxx
727-01-02 00xx

Read post #41
Thank you for making that clear. That is awesome to know! If this is true, that eliminates the need for the need for that box. But what about the remote turn on (the blue wire) to turn on the amps? Rather than having to connect it to the ignition or putting a separate switch? The Cleensweep would turn the amps on properly with no "thump" by having the correct delay.
Old 06-18-2018, 04:34 PM
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I've never used this.

http://www.forscan.org/download.html

Is that where I download it from?
Old 06-18-2018, 04:44 PM
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Originally Posted by DanielHooks
I've never used this.

http://www.forscan.org/download.html

Is that where I download it from?
Yes.

That thread I linked also mentions the cable you need to hook up to the truck's computer That thread I linked also mentions the cable you need to hook up to the truck's computer
via your laptop. The cable is cheap and you can do lots of fun stuff to the truck... search for the forscan thread in this forum... lots of neat stuff and you save your stock settings so you can always revert back.

Fuse 23 behind the passenger side footwell is your remote wire (use an add a circuit fuse tap). I have one in my truck, I will check the model number shortly.

No need for a LOC. Forscan is cheaper, more "custom", saves space, and you can add a DSP later if you find you need one.

Rather than splicing the speaker wires to RCA cables (there are DIY), I purchased some female RCA plugs that I can solder the speaker wires to, then I will plug my RCA cable into that. They should be here shortly from Hong Kong. Obviously, do the forscan setting change beforehand.
Old 06-18-2018, 04:44 PM
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Can you use this for other Ford models as well or just the F-150?
Old 06-18-2018, 04:57 PM
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Finished my install and all went well. I am more than satisfied with the results.The only issue I'm having, and one many others have also, is the chimes (backup alert, key in ignition, door open, etc.) are barely audible. They continue to play through the speakers, but one can barely hear them.

Thanks for the advice on going with line level outputs..
Old 06-18-2018, 05:01 PM
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Originally Posted by DanielHooks
Can you use this for other Ford models as well or just the F-150?
I believe the ford focus guys figured it out first, so yes to other ford models. Not sure if the codes are different between the models, you would have to google them.
Old 06-18-2018, 05:35 PM
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Forescan works extremely well. You can also use these cheap things for the speaker wires to RCA.
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