KHA 2014 Accord HU Swap to Premium
 

I will use this thread to detail the process of swapping the stock non-touchscreen head unit from a 2014 Sport with the touch-screen model out of the EX-L.

I will include wiring diagrams for both, photos of both, and instructions on what fits and what has to be changed.


I picked this up as a salvage unit for $210.

https://www.hondaaccordforum.com/for...ine=1464328948

https://www.hondaaccordforum.com/for...ine=1464328948

https://www.hondaaccordforum.com/for...ine=1464328948

The first step to wiring up the new HU is figuring out what the harnesses do.
Actual part number is 39101-T3W-A830-M1 from a 2015 Honda Accord Hybrid


Lucky for me, the main 24 pin harness is identical.

https://www.hondaaccordforum.com/for...ine=1464328948

The rest of the harnesses vary with being useful with the following differences:
Harness B isn't needed - it has audio I won't use (has sub out)
Harness C has HandsFreeLink and external AUX audio.
Harness D has HandsFreeLink
Harness E goes to the external FM Tuner - so I lose FM unless I adapt and feed my Alpine DVA-9861.
Harness F only has ground and power but the Navi model adds a few other cables.
Harness G has the lanewatch camera, and I need to check the harness against the base model because the harness includes the rear view camera.
Harness H is i-Mid and the same
Harness J is HandsFreeLink
Harness K is the USB port

https://www.hondaaccordforum.com/for...ine=1464328948

https://www.hondaaccordforum.com/for...ine=1464328948

https://www.hondaaccordforum.com/for...ine=1464328948

I referenced several schematics to figure out the connections.

A 2013 Accord with Premium and Navi schematic
https://www.hondaaccordforum.com/for...ine=1464328948
http://i38.photobucket.com/albums/e1...USchematic.jpg

A 2015 Accord with Premium w/out Navi schematic
https://www.hondaaccordforum.com/for...ine=1464328948
http://i38.photobucket.com/albums/e1...m%20203732.jpg

This is the schematic for the 2014 Accord Sport non-touchscreen that I will be replacing
https://www.hondaaccordforum.com/for...ine=1464330773

http://i38.photobucket.com/albums/e1...0Schematic.jpg

After comparing the schematics, it seems the only wire that I have to manually re-configure is the HFL steering wheel controls - assuming they will even work with the new HU directly since that wire routes to the HFL Controller on the premium model.

https://www.hondaaccordforum.com/for...ine=1464629780

https://www.hondaaccordforum.com/for...ine=1464629780

I had to combine A harness and F harness power and ground to get the unit turn on. And it does require a code. I have contacted the seller requesting the vehicle VIN so I can look it up with Honda.

https://radio-navicode.honda.com/