- First Name
- Don
- Joined
- Apr 13, 2022
- Threads
- 4
- Messages
- 42
- Reaction score
- 38
- Location
- Mount Juliet, TN
- Website
- soundsgoodstereo.com
- Vehicles
- F-150
Got it, so on the non-amplified trucks, we need to grab the signal to amplify from the factory radio/ACM. This is the harness that allows us to do this:I've only got the base XLT so I don't have a factory amplified system like the trucks with B&O; I would probably honestly just go with one of the powered JL Audio boxes, either the 8" in this thread or a 10" if the box fits the same.
https://soundsgoodstereo.com/collec...-t-harness-compatible-with-2021-ford-vehicles
Now, if you are using a JL Audio amplifier (Even if it is built-in), it already has a line output converter built-in, so no need for another one before the amplifier.
BUT, the factory signal needs to be corrected before you amplify it. You have two options to handle this:
Option 1: Use ForSCAN to turn off the factory EQ, but if you are only adding subs, you will end up turning off the EQ on the speakers also, so it will not sound that good and you could damage the factory speakers. If you are going to upgrade the entire system with new amplifiers, then this is the option I would recommend from a performance and cost perspective.
Option 2: Use a signal correction device that will analyze the factory signal and correct it. The two we recommend and have tested in these trucks are the Kicker KeyLOC along with the JL Audio Fix86. The KeyLOC is a better fit when adding subs only. Do not use "Accubass", "Epicenter", etc to correct the factory signal, it is not the right tool for the job.
Let me know what route you would like to go to and any questions that you have, we can guide you in the right direction.
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