It's a 12 V unit but the wiring should be the same as in the 2nd pic - wouldn't it ?
But wait, just this minute been staring at my unit to see if it's the same one in the pic and hidden behind the terminals obscured by a plate is Power - and + and Motor - and +.
So wiring looks the same as in your pic Cupido
Thanks guys !!!! Bit of tortuous journey but we got there.
Going to try it tonight when I get home.
Will post if it works as expected. If it does it's a cheap ($9)and quick alternative to the electronics experts builds I've seen.