Wiring Diagrams and Connections for Head Unit

[OofMon]

Hello all,

 

I'm trying to install this Head Unit on my 2014 Alphard (ATH20) and I've got some connection issues. Not sure which one is the ones for sound and which are for the steering wheel. Are any of you able to send a wiring diagram or connection list?

 

We are also using this to connect in-between. Not sure if this helps.

[Laurence]

Those connections are identical to mine. It has been a bit of a nightmare trying to replace that head unit with a Pioneer one. I have identified some connections. I have to go out soon but will post a fuller acount of what I have discovered, later today.

[Chris.ac]

Not clear. 

Are you trying to install the headunit in the picture, or is that the headunit you are removing?

[hardi]

I'm trying to install this Head Unit on my 2014 Alphard (ATH20) and I've got some connection issues. Not sure which one is the ones for sound and which are for the steering wheel. Are any of you able to send a wiring diagram or connection ?

 

[hardi]

The case is the same as Mr Jamie

[zaphodbb]

Hi,

So, that looks identical to the head unit in my 2014 Hybrid - does yours have the 18 speaker sound system as well? If it has, I am (as sure as I can be) that you don't need the MOST adapter in the second picture (more for the OP's info than you Hardi) - that's for alternated HU's that don't have the MOST control built in (i.e. an Android HU).

From another thread on here on no sound issues, I think the top connector next to the one labelled FM 75 ohm with the 4 round co-ax type is the MOST audio bus that connects the amplifier and the rear screen sound - this is a loop system so if there are any breaks in it the audio doesn't work.

Sorry no idea on the steering wheel controls, but I may have in a few weeks when my Android HU arrives with all the cables....

 

[hardi]

40 minutes ago, hardi said:

The case is the same as Mr Jamie

I'm trying to install a head unit, but I don't know the pin out for the battery voltage source and audio output

[hardi]

Can anyone help with a picture of the pinout location?

[Chris.ac]

Try this ewd file (electrical wiring diagram) 

 

https://drive.google.com/file/d/1n23j7tsCPMPXC3dmUQWFD0V6fPnEAKy0/view?usp=drivesdk

 

It's in Japanese, but you can print it out and use Google translate

[Voodoo101]

Have you looked on AliExpress. They generally have adaptors on there for most cars