87 5000CS Avant battery cable splice

[Stephen Sherman]

Finally got a sunny day on the weekend, so I am trying to locate that 
union in the battery cable which runs through the passenger side footwell.

I was trying to avoid ripping out the whole of the carpet there or 
cutting it. Actually this carpet is in great shape for its age, and 
would like to find the union, fix it with the least damage to the carpet 
if possible.

So my question is, can someone tell mw where in the passenger foot well 
this cable and splice are (center tunnel, outside edge, in between and 
how far front to back is it)?  Also, what is the "right" way to pull the 
carpet from that area.

TIA