That is the same unit I have in my '02 Sequoia SR5 except mine is the 6 cd unit. I tried to use a cassette adapter to plug in the Ipod. The problem I had is the unit thinks the cassette is at the end and tries to reverse the direction of the tape play and causes the music to drop out. So no go. There are adapters to attach to the back of the head unit to play the Ipod.