Need to raise the bonnet into the "maintenance" position, then stand on the very strong steel front bumper bar and carefully extend yourself over the engine... there's a lot to see. Removing the large plastic engine cover provides a magnificent view of German engineeringHi @ericge
I saw a post on facebook a while ago from another Aussie RHD grenadier owner. I can't find the post now unfortunately....but he found both the 10A standard, and 25A optional auxiliary wire pairs on the driver side next to the air filter housing. I've had a look at mine, and I can clearly see the 25A pair taped to the harness near the front of the filter housing. If I follow that same harness in your picture toward the windscreen, and look down at the harness between the rear of the filter housing and the brake fluid reservoir, I can see electrical tape going around the main harness, which in all other cases on my car has meant auxiliary wires are taped there. They are not easily accessible, so I can't confirm. I have had the top of the air filter housing off, and still cannot reach them.

A little fiddling with the wiring harness will reveal its secrets!
...I've lusted after a "Beemer" engine for 50 yrs
