Lenco actuator replacement

[seasams]

I'm trying to replace the Lenco actuators on my 2003 2520 and the wire feeds through the transom below the deck. What is the procedure for this? The wires are not accessible as far as I can tell. They are below deck outside of the stringers.
I'd like to have a plan before I start tearing things apart.
Any advice is appreciated.
Thanks.

 

[southofblock]

Thank you seasams. Interested in any comments or suggestions as well. Same issue also for underwater led lights, one of which needs replacement.

 

[tomc585]

Locate and disconnect the deutsch connector. Release and remove the pins. Attach a pull line to the cable. Pull the cable out from the transom and use the pull line to draw the new cable back in. Reinstall the deutsch connector and reconnect to the other cable.