What's the best car audio forum on the internet?

[JediFonger]

got an older 6th gen celica that takes double DIN headunits.

i have a VERY specific question about which head unit will do the following:
-HD Radio (built-in)
-Bluetooth (a2dp)
-DVD Audio MLP
-SACD
-5.1
-FLAC 5.1

i have a sizeable DVDA&SACD collection. DVDA and SACD are why this can't be a carputer. neither format can be played from a PC currently (@least not w/SACD, i know there are DVD A rippers, but it still doesn't play DVDA natively from the PC w/complete lossless audio with no downrez).

i have not found a head unit that will do all of that and i'm not even asking for blu-rays lulz.

i know i'm asking a lot, but i can compromise stuff EXCEPT:
-HD Radio
-FLAC
-Bluetooth.

i have a HTC phone that can do Bluetooth a2dp. i'm thinking about pairing that up w/a car unit that accepts a2dp and play .flac from my phone... but it's only stereo =(. that's the compromise i'm willing to make.

afaik, there aren't a lot of headunits that play .flac