Extra wires connecting 2 wire harnesses together
Posted: Tue Jul 26, 2011 1:15 pm
New to the group. I have done tons of speaker installs and 4 head unit removals. Should have paid more attention!! Trying my first head unit install and had to buy an aftermarket wire harness to connect to the back of my Pio-2000mp as well as the female wire harnesses for my dodge caravan.
To start with, the head unit harness has 14 wires and the van harness only has 12. The packaging for the head unit lists the colors and purposes of 13 of the 14 wires. Not listed is a yellow/black wire that didn't have a match on the van's harness, a black wire which I'm assuming is a ground. Also, there is a blue/white wire on the head unit harness that the packaging doesn't list-instead it lists a blue wire (there isn't a solid blue one) as the power antenna. Since the van harness has a solid blue wire labeled power ant. I connected my blue/white to that.
I was going to connect longer wire to the solid black and the yellow/black and ground them both. Also, on the back of the factory radio, there was a 1/2 inch wide silver ribbon wire that had an o-ring at the end of it and was screwed into the radio. I'm assuming that this is some kind of ground, and since there's a screw hole on the back of my pio head unit I was going to attach this thing to the head unit when I installed. Lastly, in looking at the male factory wire harnesses, they are fully wired with a total of 14 wires so I'm wondering if something interesting will happen when I connect my harnesses with only 12 wires going into them.
Sorry to bombard everyone with this, but just trying to be as specific as possible. Any help in these matters would be greatly appreciated. Thanks
To start with, the head unit harness has 14 wires and the van harness only has 12. The packaging for the head unit lists the colors and purposes of 13 of the 14 wires. Not listed is a yellow/black wire that didn't have a match on the van's harness, a black wire which I'm assuming is a ground. Also, there is a blue/white wire on the head unit harness that the packaging doesn't list-instead it lists a blue wire (there isn't a solid blue one) as the power antenna. Since the van harness has a solid blue wire labeled power ant. I connected my blue/white to that.
I was going to connect longer wire to the solid black and the yellow/black and ground them both. Also, on the back of the factory radio, there was a 1/2 inch wide silver ribbon wire that had an o-ring at the end of it and was screwed into the radio. I'm assuming that this is some kind of ground, and since there's a screw hole on the back of my pio head unit I was going to attach this thing to the head unit when I installed. Lastly, in looking at the male factory wire harnesses, they are fully wired with a total of 14 wires so I'm wondering if something interesting will happen when I connect my harnesses with only 12 wires going into them.
Sorry to bombard everyone with this, but just trying to be as specific as possible. Any help in these matters would be greatly appreciated. Thanks