John Sullivan: I may not know who he is, but I know where he's gonna be and how he's gonna get there.
Frank: I'm not a cop, I'm a firefighter.
Frank: I'm still here, Chief.
John Sullivan: You went down 30 years ago pal you just don't know it yet.
John Sullivan: Not for nothing, the past is a funny thing, we all have skeletons in the closet. You just never know when they're gonna pop up and bite you in the ass.
Frank Sullivan: Why don't we tame this bronco, huh? You and me, spirit and guts.
John: Shoulda, woulda, coulda, pal.
Julia Sullivan: What's going on here, Satch?
Satch: Frank says that he talks to Johnny, little Johnny on the radio in the future, and this guy claims to be your son.
Julia Sullivan: Well, I talked to him too, once. He's a cop.
Satch: You talked to the guy on the radio?
Answer: Because the house is no longer John's. In this universe, his parents still live there.
Brian Katcher
Or he lives there and his wife redecorated.
I always took the scene at the end with Julia and Frank getting in a packed car with an older looking Elvis as them moving and leaving the house for John. And as I said above John's wife must have moved in and decorated.