Thread: Aftermarket radio no positive feed in loom and not dimming with headlights

Originally Posted by loanrangie

The Aerpro kit makes it an easy swap, if you are fitting a reverse camera just connect the camera power to both the Aerpro harness purple wire and the camera power lead from the head unit.
This means no wiring at the camera end.

ive got a camera fitted you run the purple wires together and you run purple wire to the camera as well, mine has the wire in the cable that runs to the camera and you just connect the power wire on camera to the purple and earth the neg and that way I can check my camera at any time through the head unit

Originally Posted by 666spt

ive got a camera fitted you run the purple wires together and you run purple wire to the camera as well, mine has the wire in the cable that runs to the camera and you just connect the power wire on camera to the purple and earth the neg and that way I can check my camera at any time through the head unit

Same but no need to earth the camera as it's earthed thru the rca cable , my head units camera power lead is brown but clearly labeled so connected red/brown/purple together and all good.
There is an android app to switch the camera on at any time.

Originally Posted by loanrangie

Same but no need to earth the camera as it's earthed thru the rca cable , my head units camera power lead is brown but clearly labeled so connected red/brown/purple together and all good.
There is an android app to switch the camera on at any time.

I thought that the rca earth would be fine but it didn't work until I earthed it at the camera it may be as my camera has lights in it that I needed the earth connected, but it works so all good can never have to many earths cheers dean

Your profile says you live in Adelaide.
I've found a visit to Triumph Rover spares has been great when I'm trying to figure out wiring, where it goes, what color etc.
Ian doesn't seem to mind people looking around the wrecks, and you can see more of the details about what is behind various parts and panels.
Plus, if you find something useful, you can buy it.
Just an idea for a Sat morning drive.

Originally Posted by Aussie Jeepster

Your profile says you live in Adelaide.
I've found a visit to Triumph Rover spares has been great when I'm trying to figure out wiring, where it goes, what color etc.
Ian doesn't seem to mind people looking around the wrecks, and you can see more of the details about what is behind various parts and panels.
Plus, if you find something useful, you can buy it.
Just an idea for a Sat morning drive.

They have treated us well, I find it is a dangerous place to be too long, gives me too many expensive ideas.

When I get home today I'll try and grab some pictures and work some stuff out.

Originally Posted by swiftnets

They have treated us well, I find it is a dangerous place to be too long, gives me too many expensive ideas.

When I get home today I'll try and grab some pictures and work some stuff out.

Its also a very sobering place to wander - makes you think about your driving style, and what could happen!! :<((

Originally Posted by swiftnets

Plugged them in and have found the radio still doesn't dim with the headlights.

Is there a feed for that in the original loom? Where could i find one?

Michael

I had this same issue when installing an Android double din unit. There is no wire in the factory loom to provide the input for dimming when headlights are turned on. There is such a wire in the loom that goes to the module above the radio with the door lock and hazard buttons. I spliced into that one and all works fine. The only issue I discovered later was that the supply is directly linked to the dimming potentiometer thingy next to the headlight switch which you use to set the brightness of the dash. If you dim the dash lights too much, it drops the voltage and actually disables the dimming function of the radio. My kids brought this to my attention inadvertently when they were playing in the car, and I had to investigate why the radio wasn't dimming anymore. I never dim the dash lights so it's ok for me. I hope this helps. Cheers,
Ryan

Originally Posted by CanadianRyan

The only issue I discovered later was that the supply is directly linked to the dimming potentiometer thingy next to the headlight switch which you use to set the brightness of the dash. If you dim the dash lights too much, it drops the voltage and actually disables the dimming function of the radio.

Interesting. So the dash backlight dimmer has the opposite effect on the stereo backlight as reducing the dash backlighting too much will cause the stereo to go back to full brightness.
I suppose a way around this would be to connect to a park lights trigger wire instead. Can probably find a source on the right side of the dash near the headlight switch.