PA23 PLT HAS A RWY INCURSION DURING TAXI FOR TKOF.

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I WAS GIVEN TAXI INSTRUCTIONS FROM THE FBO TO RWY 30L. ORIGINAL INSTRUCTIONS WERE TO TAXI TO RWY 30L VIA TXWY F AND TO HOLD AT TXWY K. THESE WERE THEN MODIFIED TO HOLD SHORT AT TXWY J WITH WHICH I COMPLIED. AFTER THE AIRLINER PASSED; I WAS CLRED TO RWY 30L HOLD SHORT OF RWY 30R ON TXWY J. AS I REACHED TXWY J; I WAS CLRED TO CROSS RWY 30R AND TURN ON TXWY D TO RWY 30L. I CROSSED RWY 30R AND PROCEEDED TO TXWY D. AS I APCHED RWY 30L I WAS TOLD TO HOLD SHORT. I STOPPED IMMEDIATELY. I WAS AGAIN TOLD TOO HOLD SHORT AND I AGAIN TOLD GND THAT I WAS HOLDING SHORT. I WAS THEN TOLD TO CROSS RWY 30L AND TURN ON TXWY C. I ASKED IF I SHOULD TURN ON TXWY C INSTEAD OF TXWY D AND THEY TOLD ME TO TURN ON TXWY D. I THEN DEPARTED FROM RWY 30L. I WAS ASKED TO CALL THE TWR WHILE ENRTE HOME. UPON ARR; I CALLED THE TWR AND WAS TOLD THERE WAS TO BE AN INVESTIGATION FOR A RWY INCURSION. A JET HAD TO ABORT BECAUSE I WAS XING RWY 30L. I TOLD THEM I WAS CLRED TO RWY 30L AND WAS PROCEEDING AS INSTRUCTED WHEN I WAS STOPPED. THEY SAID ON THE TAPE I WAS INSTRUCTED TO TURN ON TXWY E NOT TXWY D AND I HAD REPEATED THOSE INSTRUCTIONS.