In October, Sarasola, Portu and San Sebastián rehearsed the route to the airport twice. The first rehearsal was made with San Sebastián's personal car and the second one, on October 21, with a Volkswagen Polo rented in Irun, Gipuzkoa. Leaving from Navarre, the commando members succeeded in parking the Volkswagen Polo in the Terminal 4 car park. After the rehearsals, they met again with Txeroki, who gave them the final instructions for the attack, including the day the attack would take place, as well as how to dress on the day of the bombing. Txeroki asked Sarasola to wear a wig, a cap, as well as a face mask on his nose. Sarasola would also have to carry a suitcase and a crutch, pretending to be lame on one of his legs. He also asked Sarasola to buy a mobile phone with which Portu would warn of the bombing, and told them which places they should phone: the DYA headquarters, a Basque roadside assistance association, in Bilbao, Madrid's firemen and the emergency telephone number 112. Nonetheless, Portu would eventually also call a Basque emergency number.