(Factory JBL system) Help Installing Pioneer DMH-WC6600NEX

I have a 2018 with the factory JBL headunit and JBL amp.

So far I deleted the factory JBL subwoofer and also replaced all the factory door speakers and dash speakers with aftermarket JBL speakers. I also added 2-10" subs and sub amp that are getting signal off the factory JBL amp.

What I really need help on is what wires that are connected to the factory JBL amp need to remain active for the new Pioneer to function properly? for example antenna, gps, power, remote, etc.

I want to replace the factory JBL amp with a 4-channel amp to power the aftermarket door speakers and have the new Pioneer head unit to power the dash speakers (crutch field recommendation).

See attached factory wiring diagram of the factory JBL stereo amp. I know I will be reusing the factory speaker wiring for the doors but what about all the other wires that are currently connected to the factory JBL amp? I want replace it with 4-channel for little extra power and to get full range to the speakers. The factory JBL amp signals are filtered so I'm not getting full lows, mids and highs out of the aftermarket speakers.

I would also delete my LOC for my subs. Run 2 sets of RCAs from the Pioneer headunit to the 4-channel amp and subwoofer amp.

This is my parts list:

Radio
https://www.bestbuy.com/site/pionee...-alexa-built-in-black/6404980.p?skuId=6404980

Satellite tuner
https://www.bestbuy.com/site/sirius...o-vehicle-tuner-black/8110015.p?skuId=8110015

Maestro deck harness
https://www.bestbuy.com/site/maestr...toyota-vehicles-black/5258000.p?skuId=5258000

Maestro steering wheel
https://www.bestbuy.com/site/maestr...select-vehicles-black/2868626.p?skuId=2868626

USB adapter
https://www.bestbuy.com/site/axxess...a-vehicles-black-gray/9616715.p?skuId=9616715

GPS & Sat antenna
https://www.crutchfield.com/p_794SATTO2/iDatalink-ACC-SAT-TO2.html

FM antenna adapter
https://www.crutchfield.com/p_12040LX11/Metra-40-LX11-Antenna-Adapter.html

RCA adapter
https://www.crutchfield.com/p_00735RCA/Crutchfield-RCA-Adapter.html

Connectors
https://www.crutchfield.com/S-XTRUK...cts-Car-Stereo-Wiring-Harness-Connectors.html

4-Channel amp
https://www.amazon.com/JBL-GX-A604-435W-4-Channel-Amplifier/dp/B00I5WEB8C

Right angle USB

$8 XXONE USB 3.0 Extension Cable - Up & Down Angle - Male to Female - Pack of 2 (Black-Up Down Angle)…

https://www.amazon.com/USB-3-0-Extension-Cable-Black-Up/dp/B079GVDRBF/ref=sr_1_4?dchild=1&keywords=90+Degree+Up+&Down_=&Left_=&Right_Angled_USB_2_0_A_Male_to_USB_2_0_A_Female=&qid=1593126089&sr=8-4

Amp kit

KnuKonceptz Blue KCA Complete 8 Gauge Amp Installation Wiring Kit

https://www.amazon.com/KnuKonceptz-...tz+KCA+Complete+8+Gauge&qid=1593549422&sr=8-1

 

I used a

$299 PAC AP4-TY12 Amppro 4 Amp Interface (Select 2012-2018 Toyota(R) & Lexus(R) Vehicles with Jbl(R) or Premium Amplified Sound Systems), 1 Pack

PAC AP4-TY12. Well worth the money if you want to retain the factory JBL headunit. It uses pre amp output, so no factory gains/time correction/EQ etc. Clean signal to your 2/4 ch amp.

 

https://www.tacomaworld.com/threads/pioneer-dmh-wc6600nex-information-thread.672425/page-2

The link I attached is the masters of

$1,190 Pioneer DMH-WC6600NEX 9" Amazon Alexa Built-in, Android Auto, Apple CarPlay, Bluetooth - Modular Solutions Receiver

Pioneer DMH-WC6600NEX. I don't know if you have checked them out. For some reason, I thought you could not install this head unit if your truck came with JBL head unit and factory amp. Double-check with them...

 

Thank you. I will comment in that thread to be sure.