Dave,
In our conversation, you were pretty sure that both your coach and the Grand Cherokee had RED turn and brake lights. Well, I know for a fact that there has never been a Grand Cherokee with AMBER tail lights for turn signals so, that part we were on the same page. I had to take your word for it that your coach was RED only on the tail light assemblies.
But, if in fact, your turn signals on your coach are AMBER, then, you already have that TAIL LIGHT CONVERTER, built into the wiring BEFORE it enters the back side of your trailer plug on the coach. When that unit is installed, it combines the operation of the amber turn signal and brake lights, to form what's called the Turn/Brake combo pin, both right and left, in the trailer plug.
That's why when I explained to you that you'd only use FOUR wires from the coach to the toad.
1. Tail/marker (AKA "Running lights")
2. Rt/Brake combo wire
3. Lf/Brake combo wire
4. Ground
Those are for the basic toad light wiring. And, I stated that you should use the more industrial constructed " 6-pin" trailer plug for the toads grill due to the fact that they're made better than the smaller 4-pin round and, normally the 6-pin units are clearly marked for each screw on them. i.e. "R/T, L/T, T/M, G, " etc. That makes for easy wiring as you know where each wire, leading to the rear of the grand, is coming from.
And, I also stated that you won't be needing the other two pins on that 6-pin unless, you, for some reason, would like to run a "charge line" from the coach to the Grands battery to keep it charged while towing.
But, since your Grand has no "Key ON" application for steering wheel un-lock, there's no need for the key to be in the ON position and therefore, no need to run the additional wire for toad battery charging.
So, in all that, you should be "good to go" when you receive all the components you ordered. Let me know if you need additional help.
Scott
