FK100 ENCOUNTERS WX ON APCH AND REQUESTS VECTORS AROUND WX. ATC RELUCTANT DUE TO OTHER TFC IN AREA.

Narrative

WHILE ENRTE TO DFW VIA BYP 4 ARR; APPROX 30 NM ENE FROM BYP; A SIGNIFICANT TSTM DEVELOPED NEAR BYP. REQUESTED WX DEV HDG AND ARR CTLR DIRECTED ACFT ON HDG TOWARD TTT. THIS HDG WAS REFUSED DUE TO EXISTING WX. THE CTLR RESPONDED THAT 'OTHER ACFT WERE ACCEPTING THIS ROUTING AND WE WERE TO ACCEPT THAT VECTOR.' AGAIN; THE HDG WAS REFUSED DUE TO WX. THE RADIO TFC WAS VERY SATURATED AND IT APPEARED THAT ARR AND DEP TFC AT DFW WAS IN CONFLICT. COM WAS DIFFICULT WITH APCH CTL. WE WERE HANDED OFF TO 3 SEPARATE CTLRS WITHIN 50 NM AND HAD TO EXPLAIN WX DEV EACH TIME. AFTER CLRING WX TO THE W; WE ACCEPTED HDG DIRECT DRAAK RWY 17L. 1 MIN LATER; CTLR CLRED US TO RIVET. WE REMINDED CTLR WE WERE ASSIGNED DIRECT DRAAK. A CORRECTED HDG DIRECT RIVET WAS ISSUED AFTER CTLR CHANGED HER MIND. WE COMPLIED AND COMPLETED ILS RWY 17L APCH AND LNDG. THIS SIT IS COMMON WHEN DFW ARR IS INTERRUPTED DUE TO WX ON STAR. IT APPEARS THAT APCH DOES NOT COORDINATE WITH DEP CTL TO ALLOW FOR DEVIATING AIRSPACE DUE TO WX AT THE CORNER POSTS. THE SIT WAS HECTIC DUE TO COM WITH CTLRS AND DEVIATING FOR WX. THE APCH CTLRS WERE NOT COOPERATIVE AT FIRST WITH THE CAPT'S AUTH AND REQUEST TO DEV FOR THE SAFETY OF THE ACFT AND PAX.