Trim Pump

Ok so this is a continuation from last year. Last year I had some problems with the boat and it turned out to be the Trim pump was gone.

Here is a little history:
81 Wellcraft V20 Straight 6 140hp with Mercruiser outdrive bought on ebay for $1000 in NJ last summer.

Boat has not been run yet. Mechanic was able to hand turn the motor and stated it look as good as it could, without running it.

Work done in last 8 months:
1. Removed both side panel gas tanks, inspected, cleaned, and reinstalled.
2. New fuel water seperator
3. New oil filter / oil change
4. New plugs
5. New anti-reverse switch
6. New Trim pump
7. Much new wiring
8. New fish finder
9. New radio
10. New radio antenia
11. New ignition switch
12. New Solenoids
13. Patched some "suspected" Hull dents and dings
14. Replaced entire wheel on trailer
15. New trailer lights
16. Replace all fuel lines
17. New bilge pump and wiring
18. New bilge blower and wiring
19. Clean nasty dirty bilge
20. Miscellanous parts (bilge cover, tie down, etc..)

Left to do:
1. Finish up some random wiring
2. Find frame for center windshield and side windshield.
3. Wash and wax hull (more for protection then looks)
4. Paint bottom (even though trailered)

Typed out it it doesn't seem as much work as it felt like trying to get it all done. LOL

So finally to my question. I replaced the trim pump, but it is wired slightly different then the one it replaced. Off the top of this one are 2 black wires that come off a bolt of a bracket that holds the solenoid on. I assume they are some sort of ground. Can someone tell me where they go? Is this where the ground to something else attaches or are these grounds for the pump, if they are grounds at all?

Also do I need to bleed the lines of air? If so how? Do they have a vent to work the air out itself? What do I refill the pump with, motor oil?
Thank you in advance.