confused and puzzled

just bought a new car and it had a horgma mp3 mp4 head unit with usb and sd card in the front, the bloke i bought it from didnt know how to install it, anyone even heard of one and can help? its nothing like anything ive ever seen before.

recieved a 77 Deville From Church As a Gift and new speakers and sub box as well as amps and cap have been installed, My question is how do you connect the front deck speakers to the four channel amp in the trunk of the car?