http://www.hondahookup.com/manuals/

^Register there (free) then you can download a full shop manual for a Prelude, which will be very helpful for a lot of things, including in this case the wiring diagram... If it's not just too confusing. I wouldn't take it to a shop, waste of money. If you want to wait until tomorrow afternoon I can post a closeup of my battery terminals. Negative has 2 wires, one grounding on the radiator support, the other somewhere I havn't cared to look, positive has 3 wires, one either going to the alternator or starter, don't remember which, another to everything else, and a 3rd going to my amps.