You will have to take the shuttle from T1 after you collect your bags. It runs about every 5 minutes. I want to say it is a 10 to 15-minute ride to T4 but it has been a while. You will check-in in T4, then walk and train to T4s. I don't know about a map but here is shuttle information. https://www.aeropuertomadrid-barajas...-terminals.htm