Yes, mine is similar it's DAS6 Pro (can't remember what the difference is with the 'Pro' though).
I probably used my usual Meguiars DA Microfiber correction polish, which is quite a heavy cut, but I'd have gone gently with it.
Either that or I might have used the lighter correction polish that I did the second stage with...I can't remember now as it's a year ago.
My lighter polish(es) would have been the Poorboys SSR range as I bought a few last year. SSR1 or SSR2, but anything of that ilk would do it unless the trim is completely gone.