- Thread Starter
- #76
the 4 RCA's are coming off the head unit from the front l/r and rear l/r. they have been the feed for the factory amp the past year. if i were to use either the front or the rear since they are already where the amp is what would be the difference?...I don't know what you have run the 4 rcas to that you mentioned. If it's to the factory amp, you won't need them anymore. You can just remove one set or tape up the ends, and plug the other set into the new amp.