Hi folks! I'm new to the forum and new to Audi's in general. My Quattro Coupe is my first Audi!
Was hoping I could get some help from someone trying to route power directly from the battery from the Engine Bay to the Cabin to the amplifier in the booth.
I can't seem to find a decent place to run the wire without drilling a hole between the cabin and engine bay. Has anyone done this and is familiar with a good path? I've looked behind the glove box and the grommet back there is packed to the brim.

Any suggestions would be greatly appreciated!