So where do i start here? Probably a list of the ice to begin with.

Headunit - Alpine F#1 Status
Processor - Alpine F#1 Status
Amps - x3 Pheonix Gold Zenons
Subs - x2 JL Audio 13W7s
Component Speakers - Pheonix Gold Ti Elites, 9", 5" & Tweeters
Capacitors - x2 Pheonix Gold Powercore 15F (yes, fifteen Farad)
Laptop Intergrated in to system
15" touch screen built into dash
7" TFT
Second battery with split charging system
Massive alternator (can switched off to increase BHP)
Voltage monitor
Phone control of PC
End-less amounts of sound deadening

Other stuff....

Every panel has been custom made & trimmed. (try to ignore the photos, it does look all black)

The clocks are all software based & come up on the PC for driving. Also built into the PC is sat-nav & fingerprint security.

There's loads of neons everywhere, but done so you can only see the emitted light, & are remote control via the alarm of course

Re-trimmed leather sparco seats

B&M quick shifter (maybe this should be in engine? lol)

To be fair, you can't get a good idea of the extent of work gone into this car's interior. have a look around the gallery, linked off of the home page. I may help give a better idea once there's more photos.