Its all still in, i just unhooked ns1 #2 under the cargo tray and am running one at .5 very lightlyI figure one amp at .5 will be a big gain. Never saw 150 with the Crown in there, but I don't think I tested after the last port revision and my brother never really came back to spend any time in testing. It sounds great, looks good (except for the doors which we will replace) and he doesn't blow stuff up which I think was all he was after.
Backing up to it should be OK. I just figured you tore out everything after the last show of the year.