Trim Tab Pump Location
The trim tab pump is located in the starboard console storage compartment. The hydraulic fluid level should be checked on an annual basis or anytime there is evidence of a leak.
I hope your pump has more space around it than mine does. I use a tiny funnel to pour the automatic transmission fluid with an absorbent pad beneath, just in case. Maybe put some blue masking tape on the hard-to-see fill lines.
And a ... Hell, you're 81, you've probably done this many more times than me!