For improving the rear speaker volume, this is a great option/solution. Signal-in - amplified and to the respective speakers. If you use a high-quality brand like Kicker, JL Audio, Alpine, Gladen-Mosconi, or Arc Audio, then you do not need a LOC, just speaker-level (High-Level) RCA signal into the amplifier, flip the amplifier switch to High, then you are good to go.@SoundsGoodStereo
what is your guy’s take on this one?
Not sure if I'm following, my only experience with adding amplifiers is to subwoofers.So it's SO easy. ACM to rear speakers right? Disconnect speaker and connect wires to new wire running back to amp, splice in RCA jacks for input connection. Run second pair of new wires back to the speakers and connect. Boom....
Sure I'll do it tmrw morn.Not sure if I'm following, my only experience with adding amplifiers is to subwoofers.
If I understand this correctly, disconnect rear door speakers, run speaker wire from door to amp, then run speaker wire from amp back to door speakers? No splicing at head unit required? Anyway you could put together a simple drawing/diagram? I would like to do the same with my system.
Did having a 2 way speaker in the front pose any problem? The current DSP is set to run a pair of woofers only, so I assumed they needed to be replaced with woofers only. I was looking at the Kicker 6x9 components so that I didnt mess things up by adding a 2-way in its placeI was gonna go with JL in the front doors but JL didn't have a pair that fit, so I went with these instead:
![]()
I am not good at drawings, but yes, you nailed it.... Look at this and let me know if you have any questions?Not sure if I'm following, my only experience with adding amplifiers is to subwoofers.
If I understand this correctly, disconnect rear door speakers, run speaker wire from door to amp, then run speaker wire from amp back to door speakers? No splicing at head unit required? Anyway you could put together a simple drawing/diagram? I would like to do the same with my system.
No sir, I had the exact same Q to Crutchfield when I was talking to them before the purchase. Because those run through the B&O amp they are crossed over and configured for specific hertz. From what I understood was the tweeter is basically silenced via the B&O.Did having a 2 way speaker in the front pose any problem? The current DSP is set to run a pair of woofers only, so I assumed they needed to be replaced with woofers only. I was looking at the Kicker 6x9 components so that I didnt mess things up by adding a 2-way in its place
thanks for detailed response ??For improving the rear speaker volume, this is a great option/solution. Signal-in - amplified and to the respective speakers. If you use a high-quality brand like Kicker, JL Audio, Alpine, Gladen-Mosconi, or Arc Audio, then you do not need a LOC, just speaker-level (High-Level) RCA signal into the amplifier, flip the amplifier switch to High, then you are good to go.
If you have the regular B&O, you can use the APH-FD02 for a no-splice connection. For the Unleashed customers, the factory rear speakers are run off the ACM in the dash, not the factory amplifier. You will want to use our Unleashed harness to make this happen. For the non-amplified guys, you will need a full-length T-Harness (Speaker Wire + Purchase Solder RCA Tips)
APH-FD02:
https://soundsgoodstereo.com/produc...-2019-ford-vehicles-with-b-o-amplified-system
Unleashed Harness:
https://soundsgoodstereo.com/produc...-t-harness-compatible-with-2021-ford-vehicles
2015-2020 Non-Amplified Harness:
https://soundsgoodstereo.com/produc...or-base-non-amplified-2015-2020-ford-f-series
2021+ Non-Amplified Harness:
https://soundsgoodstereo.com/produc...-t-harness-compatible-with-2021-ford-vehicles
RCA Tips:
https://soundsgoodstereo.com/products/straight-wire-rca-solder-tips
For adding a subwoofer using these channels or any door speaker channel:
I mean, it will produce sound, but the factory speakers only play limited subwoofer frequencies, and for a really good reason. A factory speaker playing 35hz at the same level as 100hz is a warranty issue for Ford. So they put a high-pass crossover on the interior door speakers and this limits the range. An amplifier does exactly what the name entails, it "Amplifies" exactly what it is given.
Example output of a factory amplifier to the rear door speaker:
35hz = 1v
45hz = 2v
55hz = 3v
65hz = 4v
75hz = 5v
85hz = 6v
The new amplifier will take this and amplify it evenly across the board, lets say it's 500w amplifier which equals a total of around 41 amps of output. It cannot put out more than this. If you amplify this signal above, here is what you end up with:
35hz = 7 amps = 84w
45hz = 14 amps = 168w
55hz = 21 amps = 252w
65hz = 27 amps = 324w
75hz = 34 amps = 408w
85hz = 41 amps = 500w
So, it will play but at a major sacrifice of output the lower the frequency. If you do it the right way and use a KeyLOC which has a signal correction module built inside (Fancy EQ - DSP), it will fix this and output this signal:
35hz = 6v
45hz = 6v
55hz = 6v
65hz = 6v
75hz = 6v
85hz = 6v
Then, guess what... Here is your new output of your 500w amplifier:
35hz = 41 amps = 500w
45hz = 41 amps = 500w
55hz = 41 amps = 500w
65hz = 41 amps = 500w
75hz = 41 amps = 500w
85hz = 41 amps = 500w
![]()
Thanks SGS, this is exactly what he did, even with the RCA, which threw me when he did it, but... It works. My only regret is not going bigger (more watts). It was a 'test' for me since so many people were so adamant it wont work... I still might swap the amp out for a 4/1.For improving the rear speaker volume, this is a great option/solution. Signal-in - amplified and to the respective speakers. If you use a high-quality brand like Kicker, JL Audio, Alpine, Gladen-Mosconi, or Arc Audio, then you do not need a LOC, just speaker-level (High-Level) RCA signal into the amplifier, flip the amplifier switch to High, then you are good to go.
What about the right side rear? Do you do the same on that side?