what u mean by too loose ? got sound when u drive ? the day I drove back to my house I heard mouse squeak noise from the back , then i knew
the back seat not properly clip ... try slamming it harder (this would hurt abit)   until got the sound bang !! thats what i did    now no more sound ..
no other problems ? like the famous metal knocking sound ?

mine is too hard, cannot open the back seat, until the SC want to kick the backseat from boot behind, after that adjust the lock, now is ok already. urs got ICM relay problem? what about knocking sound when cornering on unflat road?