Sony XAV-A1 Bypass

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=73083
Printed Date: April 27, 2024 at 4:06 PM

Topic: Sony XAV-A1 Bypass

Posted By: LqDFx
Subject: Sony XAV-A1 Bypass
Date Posted: February 18, 2006 at 1:52 PM

Anyone know how to bypass the Sony XAV-A1? I was under the impression that I could ground out the brake and bypass it that way, but when connected to a ground I still can not get picture! Do I need to have a switch or can I have it always grounded? Or maybe it is looking for a positive input? The book does not specify.

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Sony XAV-A1 HU, RF P4004 AMP, RF P3001 AMP, 2 RF 10" P1S410 Subs, LA S2.35.2 Dash Speakers, LA S2.525.2 Door Speakers, RF FRC3268 Rear Speakers

Replies:

Posted By: LqDFx
Date Posted: February 18, 2006 at 5:31 PM

Well, I bought a switch and hooked it up and nothing I am thinking that it is a positive trigger but I don't want to mess it up!

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Sony XAV-A1 HU, RF P4004 AMP, RF P3001 AMP, 2 RF 10" P1S410 Subs, LA S2.35.2 Dash Speakers, LA S2.525.2 Door Speakers, RF FRC3268 Rear Speakers

Posted By: LqDFx
Date Posted: February 19, 2006 at 5:07 PM

I spent about a hour in the car trying different things to get this to work. I tried tieing the wire that is to go to the barking brake into a positive feed and then ground it through a switch, no dice. I then grounded the system directly and it worked! Atleast for a couple minutes. posted_image Then I think the system looked for something and turn the picture off again.

I am thinking that I the system is looking for a current draw on the line, not just a ground. I was thinking about taping the brake + and using a relay some how to make it work. Here is what I was thinking:

posted_image

I need some input on this.

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Sony XAV-A1 HU, RF P4004 AMP, RF P3001 AMP, 2 RF 10" P1S410 Subs, LA S2.35.2 Dash Speakers, LA S2.525.2 Door Speakers, RF FRC3268 Rear Speakers

Posted By: LqDFx
Date Posted: February 20, 2006 at 4:36 PM

I fixed it!! Turns out that the ground point that I was using for the cell phone charger was not strong enough for the radio! So I moved it and voila, it works! Still going to relay the thing for a lighted switch!

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Sony XAV-A1 HU, RF P4004 AMP, RF P3001 AMP, 2 RF 10" P1S410 Subs, LA S2.35.2 Dash Speakers, LA S2.525.2 Door Speakers, RF FRC3268 Rear Speakers