Well if you hear any info let me know...I already have Alpine Type R components and I have the Kenwood KVT-512 DVD/Navigation player installed. I'm just missing some bass.... If worse comes to worse I'll buy another set of components and install the mid range speaker where the sub goes and find a place to rig another set of tweeters(I was thinking on the dash like most cars do... my 2 previous cars had tweeters on the dash from factory). Then get an 8 inch or 10 inch sub. If you check out pioneer, JL, Kicker, and Rockford they have some sweet thin subs that hardly take up any room. 2-1/2 mounting depth and can even be used free aired... well thats the 8 inch pioneer. I know the other manufactures have it as well though but I'd rather put the 6.5 inch subs better. I even called JL and they said they didn't know. I even have their main facilities close to me (Miramar, FL) and it's a 5 minute drive from where I live and a 15 minute walk and I asked "can I take my car so maybe you can check it out to see if they fit" and they said no which was weird to me but whatever. Anyways let me know if find out some info and I'll do the same.