i know this should be in the audio section, but i had no replies last time i posted there. i'm trying to replace my original head unit and speakers with a sony xplode and some other components. the head unit is the premium option for when the car was bought new, it's listed as an extra $400 on the bill of sale. it's a sony and it says xr 6000 on the front. can anyone tell me how to remove this head unit and how much alterations will have to be made to the wiring to put in my new xplode? wiring diagrams? thanks!