Are wiring harnesses for seats the same from 1999 models to 2004 models? My 1999 is power for backrest and height, but not front/back. Seats from a 2004 are all power. Does the multi-connect from my 1999 car include probes for the newer seats?

 

not sure but i think you have to proceed with caution. some may not be plug and play. did you search?