Need Help With Changing Aftermarket Cd Receivers

[SKID18]

I Have This:

http://www.sonicelectronix.com/item_8029_Sony+CDX-GT110.html

Wanna Put This In:

http://www.sonicelectronix.com/item_8300_P...EH-P3900MP.html

Is there anything important I want to look into such as changing antenna adapts ,wiring harnesses, or mounting brackets?

I just need a head unit for my upcoming sub/amp system..I see that the Pioneer has sub output/hi-li pass filters (a PLUS)

I'm installing this in a 1998 Oldsmobile Eighty-Eight.

[jcm1689]

you should only have to change 2 things. the sleve for the deck, and the wiring harness for the deck. The new deck will come with both of these. after you do both of those you should be able to drop it right in