95' headunit

I have a 95 GXE bose-less headunit and was wondering what kind of power adapter I need to replace the headunit. I have a panasonic deck with a roundish looking power cable whereas the original power cable on the car has a two prong cable. Any help would be greatly appreciated!

...Any help would be greatly appreciated!

-94 FSM is available and has schema's for original stuff, check out.

k thanx... i d/l'ed it and am tryin to make sense of it now...