Aerial power after fitting new stereo

Anonymous · March 5, 2011, 14:54

Hey Guys,

So i put today aside to fit a new double din DVD/SAT NAV/blue tooth/radio, after following the stereo removal guides on here i got the stock unit out and went to install the new one, i found a universal toyota to ISO adaptor and pluged it all in, all working fine except .... the aerial now doesnt come up so i cant get radio s:(

s:( how will i cope a full day of work without chris Moyles in the morning! lol

So when i fit the toyota to iso cable it only uses 2 of the four plugs, (power and speakers) im guessing one of the other 2 plugs must be the aerial power, my first though was to use a paperclip to short the pins but then the aerial would always be up right? any help on where i can get adaptors to include all the plugs (no idea what the big long plug does so if anyone could tell me that would be great too) see a pic of the plugs underneath ...

wbarrwebster · March 5, 2011, 20:48

Hi,

Methinks there is wiring diagram on here somewhere,try a search and establish the colour of the original Mr T Aerial wire.

Worth a try.

Failing that, check out Liz's new aerial "How To" in an attempt to establish the colour of the aerial wire in the pics, then trace it back.

B

Anonymous · March 5, 2011, 22:06

Has nobody else had this problem? I assumed there would be an adaptor to buy to do this?

wbarrwebster · March 5, 2011, 22:16

Hi,

Just a thought, have you checked to see if there's fuse for the electric aerial and that it's ok....from memory ( it was a couple of years ago when I swapped the head) the there was no one separate electrical aerial plug but I could be wrong...

The other thought was the coax from the aerial will be more or less paired with the wire, look to where the coax disappears and see if you identify the wire that way.

If all else fails, someone with more knowledge will be along shortly and make my suggestions seem crude!!

Have a nice remaining Saturday.

B

cclarke99 · March 5, 2011, 22:20

The black wire in the original Toyota loom controls the aerial. You need to find the equivalent wire from your headunit. If it isn't shown in the instructions just look for a wire which goes to 12V when the radio is on.

Anonymous · March 6, 2011, 08:53

The fuse is fine, I've put the original stereo back in for now and the aerial is working, it's not so much tracing the wires as I have no where to plug all of the plugs into when converting to iso. Realised my paperclip idea wouldn't work anyway as the aerial takes it's power for the motor from that plug too.

wbarrwebster · March 6, 2011, 11:46

Hi again,

From memory, there are spare plugs in the Mr T wiring, I think the idea was that it gave you several options and you don't necessarily use them all..
We've established that the aerial is working, the issue is power from your new HO to energise the aerial wire?

While I accept that it may be a pain to do, what about refitting the new HU, get the plugs in and test the aerial wire from the HU?
There is normally a wiring diagram on the HU or with the bumph to identify the wires. There are what..say basically 13 wires from the HU:
8NO Pos/Neg wires for the Speakers, 1NO Bat live, 1NO Ign live, 1NO Ground, 1 NO Aerial and possibly 1NO illumination, the speaker wires are easily identified.... and I'm sure the rest can be established.

If you got a problem identifying the HU wires, Google wiring on the make of the unit, methinks the colour of the wire will come up!

IMHO you are not far away from a fix..( I know, easy for me to say!)

Clarky, your turn....

Ora best,

B

cclarke99 · March 6, 2011, 11:57

There is an aerial wire on the ISO standard power connector, which should be connected to the Toyota aerial wire. My information refers to a 2000 US spec car, and there seem to be two standards, but I think there's a post somewhere with the later standard. You may have to cut the wires and make your own connection if its not in the adaptor.

ISO information below

m http://www.davidsonelectronics.co.uk/pinouts.htm m

Anonymous · March 6, 2011, 15:26

in the case of aftermarket head units ive not found one that has an electic arial wire however they all did have a 12v out wire for sub remotes etc. its this wire normally blue/white that i connected my arial to. if you know the wire to arial control box connect it to this wire and up it will go when the head unit is on and down when it is off.

richard

zipimini · April 28, 2011, 01:48

The aftermarket units usually have a plain yellow for the aerial. Sometimes tagged with 'aerial' or 'antenna'. The last two I've bought both have this wire available.

wbarrwebster · April 28, 2011, 13:36

Hi,

Don't want to contradict anyone but in my experience Aerial wire was always blue, yellow is invariably the constant (Battery) live.
If I remember correctly, certainly on an ISO plug!

B

Wabbitkilla · April 28, 2011, 14:20

I dunno, I just used a Halfrauds ISO adaptor for the head unit and the aerial works.
Sounds to me that your adaptor is the incorrect one for the car s:? :? s:?

Anonymous · April 28, 2011, 16:02

Quote from: "Wabbitkilla"I dunno, I just used a Halfrauds ISO adaptor for the head unit and the aerial works.
Sounds to me that your adaptor is the incorrect one for the car s:? :? s:?

the cheats way lol

blue for the aerial and yellow for batt live if done the mans way ( ie hard way and wire it up s:lol: :lol: s:lol: )

Anonymous · May 22, 2012, 07:23

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paulkeen · May 25, 2012, 08:51

Quote from: "beanyjon"Hey Guys,

So i put today aside to fit a new double din DVD/SAT NAV/blue tooth/radio, after following the stereo removal guides on here i got the stock unit out and went to install the new one, i found a universal toyota to ISO adaptor and pluged it all in, all working fine except .... the aerial now doesnt come up so i cant get radio s:( s:( how will i cope a full day of work without chris Moyles in the morning! lol

So when i fit the toyota to iso cable it only uses 2 of the four plugs, (power and speakers) I'm guessing one of the other 2 plugs must be the aerial power, my first though was to use a paperclip to short the pins but then the aerial would always be up right? any help on where i can get adaptors to include all the plugs (no idea what the big long plug does so if anyone could tell me that would be great too) see a pic of the plugs underneath ...

Out of interest, what DVD/SAT NAV/Blue tooth/radio did you get? Any good? I have been looking at them bu tthey get mixed reviews.

Thanks

Anonymous · May 30, 2012, 17:56

Hi Pal,

Did you buy the adaptor which converts the toyota leads to your head unit?

Its this thing:

m http://www.halfords.com/webapp/wcs/stor ... 65855#tab1 m

But buy it off ebay for a couple of £.

- It could be that your missing this, If you have got it - check the BLACK wire for any malicious damage - this links to your Aerial.
- It could be a dodgy connection on the back of your head unit
- It could be your Aerial has packed up (Unlikely)
- It could be the relay under the bins behind the car. - Make sure the cable hasnt come out of it.

Russel Nash · July 17, 2012, 17:50

I have removed my factory HU today and confirmed the aerial power wire is the BLACK which is on the right hand side connector on the lower bank of three, bottom row of pins, 3rd aperture from the right. I confirmed this by taking a 12v feed wire off the cigarette lighter connector and touching the black wire pin on the loom and hey presto, the aerial goes up, remove wire and aerial goes down. Hope this helps.
m http://i1245.photobucket.com/albums/gg5 ... MG9310.jpg m
m http://i1245.photobucket.com/albums/gg5 ... MG9308.jpg m

Russel Nash · July 25, 2012, 23:39

see above