Firewall power wire pass-through

[Bob Loblaw]

While I was looking for spots to pass an 8-gauge power wire through the firewall of my '87 944 for an amplifier, I came across this image of a disassembled 944 dash that had been previously wired.

It looks like a perfect spot to enter the cabin right behind the glove box, and I'm assuming that it emerges right near the battery, which is obviously ideal. The wire will be terminated in the now-vacated spare tire compartment, but once it's through the firewall, the trickiest part should be out of the way.

Two questions:

1. Is this a factory grommet, or did someone drill it? If it's factory, what was there before?
2. If you've installed an amp in your 944, where'd you run your wire? I've seen several suggestions, but haven't noticed any kind of consensus on the best route.

Thanks in advance for any suggestions.

[Bob Loblaw]

[Bob Loblaw]

I don't know why my images aren't showing up. Kind of pointless without them.

[Bob Loblaw]

[bumflick]

I cant see the pictures, but...

Yes, there are factory gromets to the engine compoartment behind the glovebox. I used one that came out right by the battery for my amps.

I was able to place my amps under the front seats. I used 2 (a sub, and a 4 channel)

[Bob Loblaw]

Let's try this instead: https://autobahnperf.com/wp-content/uploads/2015/04/porsche-944-dash-board-removal.jpg

[Bob Loblaw]

And bumflick, from your profile garage, I'm pretty sure we know each other. You were driving that Allroad the day you sold me your side mirrors at The Prado, right?