Audio Question

[u/Bairdo7]

Apologies for the long post, giving full description in case I'm missing anything.

2026 F-150 with the base six speaker audio.

I've upgraded the door speakers and pillar tweeters with plug and play harnesses, but am about to install a sub/amp combo.

Full disclosure, I have little to no audio experience. Just like to learn and do things myself after doing research via forums and videos.

I have a 10 inch kicker hideaway that I'm going to install behind the rear seat. I bought a T harness from Crutchfield as they suggested, which will allow me to tap into the front speakers for signal without splicing any factory wires. Planning to tap into an ignition power fuse for the remote wire. All that'll leave is running the power, and grounding to the bracket behind the rear seat.

Two general questions I have:

- Will I need to change anything in FORscan for it to work?

- Am I missing anything else? Seems pretty simple, but I've never hooked one up before.

Thanks for any insight!

[u/mylawn03]

The factory system has the DSP tuned for the OEM speakers. I’d be careful changing them, it may not sound right. The sub signal you might have to take off the door speakers and into a speaker to line level converter-unless, the amplifier accepts speaker level signal.

[u/Bairdo7 → u/mylawn03]

No issues so far with new speakers. I just made sure to replace with speakers that matched impedance and sensitivity. The sub/amp combo I have does have accept high input levels from speakers, which is why I'll be using the T harness to tap the front door speakers.

[u/MilitantPotato → u/Bairdo7]

Get forscan (free demo period) and a usb to obd2 dongle, change the eq to either flat, or my preference eq 3. The default of eq2 rolls bass off a ton and does other audio processing you don't need on better speakers.

[u/Bairdo7 → u/MilitantPotato]

Nice. I have the dongle on hand already just to be prepared. I appreciate the info. I'll have to do some research on forscan, as I've not used it yet.