http://www.speakercity.com/caraudio.shtmlHere are the tweets. You'll want the Vifa D26NC-05-06. For ease of ordering, you can also sub your PL's with the Vifa M18WN-19-04 on that site. I think they may sound a little better (and save you $20) due to their higher Qts, higher Xmax, and higher power handling. Don't forget some tweeter mounts if you're not going with surface mount. I used some Neokop's to flush them into my doors.
You'll want to find a "2-way passive crossover". Look for one in the 2000Hz-3000Hz range. You can also contact
www.madisound.com to make you custom crossovers. You might run into a hangup as they'll only build crossovers based on drivers they stock.
Looking at madisound, they've got all of those vifa drivers there at around the same prices. I'd go for the Vifa D26NC05 tweets, Vifa M18WN19 7" woofers, and some custom built crossovers.
I wouldn't get too worried about power and ohms ratings. The woofer/tweet work well together at the 4ohm/6ohm ratings. I ended up not even adjusting the levels between the two on my crossover (which has a tweeter level adjustment). I'd just make sure to get your components a minimum of 75w per channel. Those Vifa mids are a bit power hungry.
BTW, sell those mids and get a small sub (bridge the rear channels of a 4ch amp to it). It'll sound soooooo much better than some coaxials in the rear doors.
Good luck!
