Would a kenwood 9105d be good for 2 12" memphis subs?

you might blow those if you plan on listening loudly. that amp may be a little TOO much power. but if you keep your gain down you may be alright. just make sure you bridge it! it'll sound much better. wiring i'd go 4 gauge. 0 is definitely overkill. i've got a 1200 watt rms amp running happily on some high quality 4 gauge. remember, you could get -16 gauge (if it existed), but if it's bad quality, you'd be better off with some 16 gauge. i've found bullz audio is great quality and it's fairly cheap if you find it on ebay.