I need help with dvd

Picked one up online for much less than retail with no tax.  Sony authorized dealer = $999.  My source for car audio is a high end installer.  I didnt think he would be impressed with the XAV7W but he had a few compliments after seeing my finished product.    Easy to hook up PS2.  I hard-wired the inverter and rca jacks behind the same panel.   Not keen on the $1000 dvd changer.  For about $375 you can get a cd changer that plays mp3's and a dvd player separately.  I got a din size dvd/cd/mp3 player from Optiview.  Directed electronics also makes a COOL indash dinsize dvd player - dont know about the features.  I  bought the Xplod cd/mp3 changer and xm tuner online and saved a few bucks.  Sony uses this funky bus-link stuff which daisy chains.  I  mounted the cd changer and xm tuner under the seat.         Hope this helps.02 Odyssey / 99 F4