OofMon Posted July 3 Share Posted July 3 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. Quote Link to comment Share on other sites More sharing options...
Laurence Posted July 3 Share Posted July 3 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. Quote Link to comment Share on other sites More sharing options...
Chris.ac Posted July 5 Share Posted July 5 Not clear. Are you trying to install the headunit in the picture, or is that the headunit you are removing? Quote Link to comment Share on other sites More sharing options...
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