Have searched high and low, i see alot of people touch on the subject but havent gotten a direct answer.
I swapped in a 04 engine with harness and ecu into an early 03 not knowing they have different ecus/harness.
The car i swapped everything into didnt come with an engine harness or ecu so i couldn’t use the old style. My Question is, if i swap the body harness and bcm from an 04 would that be plug and play with the 03 chassis? and would i have to use the whole body harness or just whats under the dash? Thanks in advance, this cars been a huge headache that could’ve been avoided with a little research but im in it for the long run now.