Got the call from the dealer yesterday to tell us our 17.56-2 OB has arrived. 
When we ordered it (back in March) with the 150lt fridge, we were told that it would need both a 12 pin plug and an Anderson Plug and an associated plug fitted to the tug, so we ordered the Anderson Plug option with the van and had the auto-elec fit one to the tug.
However, today the dealer has told me that Jayco no longer fit Anderson Plugs with the 150lt fridge option.
The dealer has offered me a credit for the A. Plug!
As a result of this "change", when I get the Panda home, I am thinking of doing the following rewiring to minimise voltage drop from the tug to the dual batteries and to maximise battery charge, so interested in opinions and comments on the following...
- disconnect the fridge 12v from pins 9 & 10 of the 12 pin plug
- fit a low voltage regulator switch to the dual 100AH batteries for the 150lt fridge
- connect only the fridge 12v to the the low voltage switch on the dual batteries in the van
- fit the CTEK D250S to the van
- disconnect the batteries from the 12v "charge" line from pins 2 & 3
- connect the van batteries to the CTEK
- run 6B&S cable from the CTEK to an Anderson Plug for connection to the Tug.
I believe this configuration will allow for the fridge to run on 12v from the van's batteries and the low voltage isolator will still leave enough charge in the batteries to run some lights if we stop for any extended time and forget to turn the fridge over/off. The voltage drop to the CTEK is minimised as it will be 6B&S cable (not 6mm cable as fitted by Jayco) from the vehicle batteries right through to the CTEK.
I have also heard that the pins on the 12 pin plug are not able to carry enough amperage/voltage and in some cases can melt from overheating. Is there truth to this?
Anyway, we are getting much closer and can't wait for pickup in 2 weeks - just waiting for the annex to be made!

When we ordered it (back in March) with the 150lt fridge, we were told that it would need both a 12 pin plug and an Anderson Plug and an associated plug fitted to the tug, so we ordered the Anderson Plug option with the van and had the auto-elec fit one to the tug.
However, today the dealer has told me that Jayco no longer fit Anderson Plugs with the 150lt fridge option.
The dealer has offered me a credit for the A. Plug!
As a result of this "change", when I get the Panda home, I am thinking of doing the following rewiring to minimise voltage drop from the tug to the dual batteries and to maximise battery charge, so interested in opinions and comments on the following...
- disconnect the fridge 12v from pins 9 & 10 of the 12 pin plug
- fit a low voltage regulator switch to the dual 100AH batteries for the 150lt fridge
- connect only the fridge 12v to the the low voltage switch on the dual batteries in the van
- fit the CTEK D250S to the van
- disconnect the batteries from the 12v "charge" line from pins 2 & 3
- connect the van batteries to the CTEK
- run 6B&S cable from the CTEK to an Anderson Plug for connection to the Tug.
I believe this configuration will allow for the fridge to run on 12v from the van's batteries and the low voltage isolator will still leave enough charge in the batteries to run some lights if we stop for any extended time and forget to turn the fridge over/off. The voltage drop to the CTEK is minimised as it will be 6B&S cable (not 6mm cable as fitted by Jayco) from the vehicle batteries right through to the CTEK.
I have also heard that the pins on the 12 pin plug are not able to carry enough amperage/voltage and in some cases can melt from overheating. Is there truth to this?
Anyway, we are getting much closer and can't wait for pickup in 2 weeks - just waiting for the annex to be made!