I think what you want might be called reverse.
Pin 1 is the same color on both ends.
The 1st cable example you posted should work.
I ran into the same problem with many previous mobile installations with Yaesu radios, so I purchased the MEK-5 cable when I went to HRO to get my radio.
Turns out I had an extra 6-pin RJ-11 cable in a box from a previous installation. There are at least 4 other radios in my shack that utilize a 6-pin cable for either the control head, or the microphone.
So I winced when I took one of the older cables and cut a 3-foot end off. I installed a 6-pin RJ-11 on the other end, and after several tries got a shorter cable that I can use. Sure I could have bundled up 15 feet of extra cable and stuck it under the seat, but I learned my lesson this time and shortened up that cable. I haven't installed it yet (still have a bunch of cable wound up under the seat) so I am riding on borrowed time. In the past, the extra cable under the seat got caught in the sliding seat adjustment mechanism and was slice clean off. That time it was an 8-pin cable so it was easy to snag another ethernet cable to replace it.
The most difficult part for me was getting those tiny wires into the proper slots in the plug before crimping it. Fortunately I had the tools and the plugs to make my own cables. If you can find an appropriate 6P6C RJ-11 cable you are all set. But then again it is not impossible to make one yourself, I did it so it is definitely possible.
Please make sure of the cable you buy, and unless you mount your radio in the extreme back of your vehicle, you don't need 15 feet.
Micky K1XH
