Headunit is confused!!!

[kristian]

Hi, i have a issue with my standard headunit in my 172.

It doesn't realise when the ignition is off or on, when im driving it gives me the warning beep after 10 mins and switches its self off!! it should only do this while ignitions off!!

also when i do switch the ignition off the headunit stays on!!
I think the lives or something are the wrong way???

anyone help??

cheers kris

 

[CCrispUK]

Red an yellow (iirc) wires are wrong way round.

 

[kristian]

Can anybody confirm?

The car did previously to my ownership have a after market headunit and must have had something changed.

cheers kris

 

[benkay]

Yep, sounds like red and yellow are swapped over. Either swapped in the ISO connector, or there will hopefully be some bullet connectors mid line which you could simply swap.

Ben

 

[kristian]

I checked and there was only a black wire that had been fiddled with, unless like you say the connector it's self has had the wires changed around?

What I did see was that the space for the connector on the actuall headunit has 4 prongs on one side and 3 on the other, but my ISO connector only has 3 wires on each side and a empty slot for another wire!. So the headunit has got one prong with nothing going to it, I wonder if the black should be connected to this as there isn't any other stray wires behind the dash?

 

[kristian]

Does any body have a diagram for one of these? Or pics?
Cheers kris

 

[kristian]

The lives (red yellow) haven't been tampered with, there is a big fat black wire that goes into the headunit and it has had another black wire but thinner joined on to it by someone, There is also a black and grey striped wire that is not connected to anything!!! any ideas people??