If I understand the question . Pull the selection knob straight out . The trim bezel is just pushed into the dash .  Unplug the round electrical plug and push the release ears and it will slide right out . 
     I would have swapped the switch from the front to the rear or just exchanged plugs before buying a new switch .  I would also have gone to the blower motor first and jumped it too see if it was dead and then worked my way forward .
                                         
                                              Stacy

Sent from my iPhone

> On Sep 14, 2013, at 9:20 AM, Eric Caron <ecaron1@COMCAST.NET> wrote:
> 
> Hi listers,
>        Getting a bit cooler here in VT so I'd like to get my rear heater fan working.  
> 
> I'm told that often it is the front switch that is the problem rather then the fan itself.  so here is where I'm at in the trouble shooting process.
> 
> I have a new switch from Van Cafe 
> I've pulled the rear fan control out from the dash.
> 
> I noticed one of the two wires were off the upper plug but replacing that didn't suddenly make my fan work.  I suspect this is for a light.
> 
> I then attempted to change the switch out but was stumped at one point.
> I have the switch off the dash plate but cant figure out how to separate the part with the wires from the part that attaches to the dash plate.
> 
> The new part is just the part that attaches to the dash plate and the part you turn sticks into.
> I don't want to be forceful in trying to separate the two pieces.
> If you can give a tip I'd appreciate it.  remember in your response that I'm blind so pictures or color references don't help.
> 
> Related question.  Can someone let me know what else is on the rear heater fan fuse so I can double check that I simply don't have a fuse out.
> 
> I'm hoping to find a fix before needing to track down a rear fan.
> 
> Tips are greatly appreciated.
> 
> Eric Caron 
> 85 Westfalia GL auto