Hey guys

I'm looking at installing my sound system in my crown but before I go ripping into it I thought I'd ask ppl who has done this for some guidance.

I need to know how to pull the surrounds off that's around the factory tv unit (the bit that joins onto the instrument cluster). Is it as simple as undoing the 4 screws and pulling on the surround till it unclips?

And also info on how to remove the rear electrics seats?

Any info will be greatly appreciated.

Thanks.