Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: Viral_Jim on 08 June 2015, 16:38:44

Title: In search of a permanent live for my new Sony head unit.
Post by: Viral_Jim on 08 June 2015, 16:38:44
So, I managed to install my new mechless head unit and cup holder (just waiting for a blanking plate to complete the effect) and I have a curious problem.

The head unit works broadly as expected, even down to continuing to play when the ignition is switched off but stopping when the key is removed  8). BUT, when I take the key out for any period of time (from 2secs to overnight), all the settings on the radio disappear, including clock, station presets, equaliser presets, the whole lot. - Very annoying.

What I think must be happening is that the HU pin for permanent live must be matched off to a switched live on the car side of the connector. Currently, one of the three parts of the block connector on the car side is left blank as I haven't yet fitted the steering wheel control unit I purchased. But I can't see that making any difference?

So, does anyone have a wiring diagram for the vauxhall radio plug so I can splice in a proper permanent live and keep my radio settings?

Thanks in advance  :D
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: 05omegav6 on 08 June 2015, 16:41:06
You need to join the yellow and red wires on the HU loom as per the wiring instructions supplied with the radio :-X
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Jimbob on 08 June 2015, 16:41:23
There are normally a red and yellow wire on the sony side, often with bullet connectors between the HU and Connectors, swap them over so red joins yellow and yellow joins red and all should be well.
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Viral_Jim on 08 June 2015, 16:44:04
But... but... if I read the instructions I wouldn't get to take up other people's valuable time by asking inane questions  :-[

Thanks chaps, will Please read the manual tonight when I get back to the hotel.
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Mr Gav on 08 June 2015, 17:11:16
There are normally a red and yellow wire on the sony side, often with bullet connectors between the HU and Connectors, swap them over so red joins yellow and yellow joins red and all should be well.

That`s what I did for my Kenwood unit  :y
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Viral_Jim on 08 June 2015, 20:48:06
Thanks chaps. This worked a treat. Next on my list of stupid questions is about a connects2 stalk adapter. I thought these were plug and play, but it seems possibly not.

The kit is an in-line one (shown below) and hooks into my head unit just fine and the ISO connectors also hook up. But does anyone know what the brown wire is? Just connecting up the ISOs and small jack lead doesn't get it working.

(http://i27.photobucket.com/albums/c170/jimmy944/A84908B9-9768-4A77-A2B7-194D2C8F0346.jpg) (http://s27.photobucket.com/user/jimmy944/media/A84908B9-9768-4A77-A2B7-194D2C8F0346.jpg.html)

Also, the kit doesn't use the connector below at all which makes me think it maybe the wrong one?? I know some of the pins must be to drive the info display but I'm wondering if I need a different stalk controller?

(http://i27.photobucket.com/albums/c170/jimmy944/1063A754-2FD6-4255-90B8-FF1D1FF50BC4.jpg) (http://s27.photobucket.com/user/jimmy944/media/1063A754-2FD6-4255-90B8-FF1D1FF50BC4.jpg.html)

Finally, sadly the kit didn't come with instructionsso Please read the manual is not an option. :(


Title: Re: In search of a permanent live for my new Sony head unit.
Post by: TheBoy on 08 June 2015, 21:13:25
Send the kit back then!

The display and remote control are on the 20pin block at top (blue in your case), so the kit you have wont do display or remote control functions. Looks to be little more than to pump audio straight into the speakers.
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: 05omegav6 on 08 June 2015, 21:32:19
Connection diagrams for the connect2 stuff is littered all over tinterweb  ::)
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Dave DND on 09 June 2015, 09:21:13
I think you have already discovered the term Please read the manual for the Sony head unit connections

May I also suggest Please read the manual for the connections of the interface too   :P
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Andy H on 09 June 2015, 09:31:54
It looks to me as though two wires have been cut (white and blue?)

To echo what has already been posted though - if you search hard enough you will probably find the requisite wiring diagram on the internet.

(http://i27.photobucket.com/albums/c170/jimmy944/A84908B9-9768-4A77-A2B7-194D2C8F0346.jpg)
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Viral_Jim on 09 June 2015, 11:04:37
Andy, no cut wires, the blue and white (towards the top of the pic) are looped across two pins of the connector.

I will do some concerted Googling to find the connection diagram/instructions. Sadly none were included with the cable.
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Dave DND on 10 June 2015, 10:09:28
As well as wiring everything up correctly, these interfaces often have a correct power up and connection sequence that must be adhered to in order for the head unit to recognise it

Hence the need to study the instructions carefully   ;)


Oh, BTW - the top MINI-ISO block is not used for steering controls as previously suggested on this model
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: minifreek on 10 June 2015, 15:54:39
Have you 100% got the correct connects2 loom for a Sony H/U...?
Title: Re: In search of a permanent live for my new Sony head unit.
Post by: Viral_Jim on 11 June 2015, 00:31:32
Have you 100% got the correct connects2 loom for a Sony H/U...?

No idea, it's 100% what I ordered and (with the exception of the brown wire) plugged in just fine.

As well as wiring everything up correctly, these interfaces often have a correct power up and connection sequence that must be adhered to in order for the head unit to recognise it

Hence the need to study the instructions carefully   ;)


Oh, BTW - the top MINI-ISO block is not used for steering controls as previously suggested on this model

Thanks for the info on the mini ISO block. I will re-read ithe instructions for the HU but didn't see anything about a stalk adapter. As mentioned nothing came with the adapter and I haven't had chance to find it on the net yet.