Rear speaker harness PART #2120-0628 allows installation of rear speakers with OEM Harmon Kardon radio; features OEM-type 35-pin connector Tour-PakÔøΩ plug-and-play rear speaker harness PART #s 2120-0630 and 2120-0770 fits all models with a Harmon Kardon radio and using a factory speaker-equipped Tour-PakÔøΩ; allows the use of Tour-PakÔøΩ audio controls Made in the U.S.A. NOTE: Customer will need to have the radio flashed by a dealer to activate rear channels in order for these harnesses to work. .