Maestro SW MDS Steering control wiring help

Thank you for the responses.

I flashed the module and have the diagram now. Couple follow up questions:

1) Can I connect the ground and accessory (12v+) wires from the Maestro to the corresponding wires on the metra harness which is already connected to the radio?

2) What is the best way to connect the wires without destroying the stock steering wheel control harness? Is there some sort of connector I can use to just tap the wires? I don't want to cut them off from the harness in case for some reason I need to put in the stock radio again.

This is the first full install I'm doing by myself, so I'm not that good yet. I know the best method is to solder, but I'm not a pro and don't want to buy a soldering gun etc. Just looking for something that is safe and works.

Thanks again!

So here is the wiring diagram:

https://www.dropbox.com/s/lrumdm8vndptwxe/Maestro Wiring.pdf?dl=0

Now I'm having trouble locating connector A & connector B in my car. Here is pic below:



The left connector attaches to the harness, the right connector to the antenna.

That leaves me with 2 in the middle, but they don't match the description in the wiring diagram. I believe connector A is the dark grey middle one, because i found the correct wire colors, but they aren't in the correct pin location.

Also I have NO idea where connector B is. It's supposed to be bluetooth module? but I did not have any bluetooth on the previous stock radio...

For those who have installed this before please tell me where to connect to on the vehicle side.

Thanks!!!

the big gray one is "A" (it has the lever on it)
question 1
yes, you can use those wires, and the metra adapter actually recommend it

question 2
there are a few ways to strip it. Personally, I like "dragon head" stripper (or you may find them as automatic stripper) as it wont damage the wire. But chances are you don't have them. So what i would do is get a lighter, and heat up the stripping for a few seconds (don't burn it) then take a pair of wire strippers and gently pull it while squeezed. If done properly, the copper underneath will still be intact and the insulation is removed. Then get a pick tool, and pierce the copper wire. Run the wire from the mestro in the loop you created and tie it tight around the factory wire (loop and swoop method, or military splice). With this method, you really don't need to solder.


also, it looks like the factory wires you need to splice are white and pink, but verify with the pin possions