Sun advanced to the last eight of the Kent Sunday Premier Cup with the 4-2 defeat of Ashford side Bliby.
Their goals came from David Bryant, Sam Prett, Danny Murkin and Frank Whitehead.
But Grapes bowed out 3-2 to Club Star M after being level at half-time.
Rob Ingram and Grant Holden were on target for Grapes.
Full roundup in the Messenger.