Searanger Information Wanted

I have just bought a SeaRanger 5600 on Ebay and apparently it has a manual and I would be happy to exchange scans, pdf's or photocopies. Your postings are the most information I have found on SeaRanger so far. I scored a SR5561 with no paperwork or accessories at all. My only concern is hooking up the 4 pin power plug. It is just like a hard drive/ CD rom plug in a computer. My bet is the 5600 has the same plug. I just do not want to fry it.