Nova wiring for a head unit help?

[20SEHnova]

4 wires from the car, black, red, brown and yellow. wiring block for connecting head units. which wires on the nova wire up to the block? ie which is ground, live, memory live etc? thanks

http://img81.imageshack.us/img81/4134/photo0027qq4.jpg

[ive_had_a_novadose]

Black is live, Brown is earth but not sure about the red and yellow just mess about with these 2 like i did and got it right in the end lol

[brucer]

test the wires with a test light.with ignition on/off for permanent live etc etc.

[20SEHnova]

:s

[Steve]

red should be live from the battery and yellow from the ignition, or vice versa I cant really remember lol

[tookie]

on the nova side of things brown is the earth black is the switched live and red is the permanent ,on the head unit yellow is permant live red is switched and black is the earth

[Leeboo]

Anyone know what colour the ignition wire is on headunit side? blue?

[20SEHnova]

on the nova side of things brown is the earth black is the switched live and red is the permanent ,on the head unit yellow is permant live red is switched and black is the earth

Right then tookie, can you tell me which wires to join to which, i know its prob not hard to work out but im in a non thinking mood lol. cheers mate.

[tookie]

the brown on the car to the black on the h/u,the black on the car to the red on the h/u and the red on the car to the yellow on the h/u.

[20SEHnova]

http://www.migweb.co.uk/forums/ice-security/349658-nova-wiring-head-unit.html
Everyone has a diff answer =/

[Dave.]

black - black
brown - brown
yellow from unit - red from loom
red from unit - yellow from loom

thats what it is on mine :thumb:

[mikey14sr]

Dragged an old pic out for you, this has been posted about 50 times in the past two years!

http://img.photobucket.com/albums/v689/mickyd79/huwiring.jpg

[20SEHnova]

correct mikey! not that i was testing lol, but i realised the mystery yellow from the cars loom was for a speaker and matchs up with the yellow black wire. :) Sound that.

[Leeboo]

Dragged an old pic out for you, this has been posted about 50 times in the past two years!

http://img.photobucket.com/albums/v689/mickyd79/huwiring.jpg

Helped me out big time mate thanks!

[7ova]

Hi
just get a test lamp connect one end to earth. "door hinge"
touch other end one at a time to each wire
till you find constant live then conect to radio.
same again with ignition on till you find igntion live
and connect last one, should be earth "thick brown"
if you dont get the test lamp to light on any of the wires
first test, the test lamp its self across battery.
then try a different earth conection and try it all again.
if still no good you may have blown a fuse?
good luck :thumb:

[Leeboo]

Don't overlook the fuse in the back of the headunit either, mine had blown whilst trying to make the headunit work.

The above combination worked perfect for mine, it recognises ignition etc.

p.s. - You're headunit presumeably has a black plug attached. Some 'brand new in box' headunits come with a bit that goes into the that plug, and leaves you with the orginal headunit wires intact. I done this on mine - Basically this means that if you ever buy a another headunit, it will be a plug and play job as you have effectively attached a plug that fits most units:thumb:

(If you can understand that)

[craig green]

Why cant people leave the std ISO connector in place? Rather than chopping it out to be left with single wires.

My headunits just plug stright into my Novas standard head unit loom (however tha needed modding as GM place the live in a strange pin position)

Any headunit swap takes about 3 minutes.

[Steve]

Was this thread not for someone that didnt have the iso connector? As thats what I had with mine, all it had was ground, live and a block for the iffy 80s radio. lol

[nova_carb]

http://i270.photobucket.com/albums/jj84/nova_carb/ashdclos.gif

hope this helps...

[thunderpants]

what year is the car?

[20SEHnova]

mk1, 1990

[DTR-DEVIL]

mk1, 1990

i too own a 1990 mk1. and was having exactly the same proplem! the dam HU wouldnt work!

now it does. cheers great thread. great timing! :cool:

[Timmy]

we get muppets like this atb work all the time just think its all about cuttting the iso out. does my head in. if i was you i'd wire in a new iso then cut use blocks as a new loom for the head unit can be at least ?30