you dont need phd2 to guide on the sun

[Joseph Perry]

hi   i found this sun tracker box  system you add to any mount

that has st4 input guiding.

Hinode SG

solar autotracker

astro Hutech

from germany.. not cheap.

https://telescopes.net/hutech-hinode-solar-guider.html

you can get one here.

or buy the dedicated sotar tracker mount from sky-watcher.

it works great.. auto find and tracks the sun for the eclipse