Dynasty Warriors 3 muoso wine location

Hi all, I just bought a PS2 and Dynasty Warriors 3 for nostalgia purposes and on the Assault on Cheng Du, I am unable to find the Musou wine. I’ve searched the inter webs but none of the guides actually show where it is on the map. The best I could find was a guide that said it was near Liu Bei’s starting point but I’ve looked and it’s not anywhere around there. Any help would be very appreciated!