Easiest way to run wires from the I/P to the engine compartment?

[MrDangerUS]

I'm adding engine and trans temp gauges and I need to install additional wiring loom. What is the best way?

[V8 FOU]

Maybe do what BaE did to run wiring through aircraft fuselages, get a ferret to pull a small wire through so you can pull the loom through! Seriously, best way is to use a multicore cable of 5 or so - you can get very light gauge cables for this, and run this from the engine compartment under the centre console to the dash etc..

[rogerch]

Obviously I'd do the 2 together, I'd run over the top, and down the "A" pillar. An alternative is to run them with choke and speedo cable through the centre, thats where I routed my revese camera.