Originally Posted by Swoosh69
when you install it if you can change maps with the steering wheel controls then its a jb4.
if you have to change maps with the gas pedal then its a jb3
hope that helps.
@jeveryday op is probably 1000 miles away from the car and "cl" its craigslist, also just in case "op" means original poster.
LOL thanks man I was reading it like WTF