Toyota 4runner (2003-2009) Single Din Radio Installation Package. Includes the wiring and trim kit. Replaces standard 4runner radios (wont work when replacing a JBL system) Toyota 4runner (2003-2009) Single Din Radio Installation Package. Includes the wiring and trim kit. Replaces standard 4runner radios (wont work when replacing a JBL system) 2003 2004 2005 2006 2007 2008 2009 03 04 05 06 07 08 09 The 4 runner had two stereo options. The standard radio has a 2 part harness connecting to the radio, the jbl has a one part harness The antenna is the same as the aftermarket radio input so no antenna adapter is needed. This is a single din kit so it fits radios that normally have a cd slot in them