where to drill firewall, need to install wiring into cabin Options

[mightyohm]

Hey guys,

I need to run some cables from the engine compartment into the cabin for my megasquirt/wideband O2 setup.

Some of these cables will come from the bottom side of the engine (below the tin) and some from the top side (fuel injection). I need at least one 1-1.5" hole so I can fit cables plus pass some of the smaller connectors through.

I am planning to install the megasquirt and wideband box as well as a small fuse panel under where the armrest goes, on top of the tunnel. Later on I'll make a box and raise the armrest up a few inches.

Any suggestions for where to drill a hole?

I am thinking about putting it down near where the shift rod enters the tunnel, so I only have to go through one layer of metal, and the wires will come out into the tunnel about where I need them. However, I am worried about interfering with all the stuff in there (fuel lines etc) as well as getting all the wires from the top of the engine compartment down to the bottom. I think that means drilling holes in the tin as well. I have way too many wires to use the stock harness "tube".

Thanks!