i have a 2001 sequoia with jbl cd player type 1. my question is this a cd changer? or just single loader, also what is the difference between SR5 and Limited pls help

SR5 is the basic model in Sequoia and Limited has some extra accessories then SR5 and if yours is SR5, probably your CD player would be compatible for only single load, unless it say on the top of the CD player, this is my opinion, as much I know that.