-To remove instrument cluster - just unscrew 2 small torx screws upside of the cluster and then pull it out carefully and disconnect wiring (dont forget to switch ignition off)
all another instructions you can find in TIS (download dvd image somewhere ,here for example:
http://download.golgofa.ru/tis-2007.nrg ,and install it on your pc)
- of course you can switch system on after you do all connections,
before coding.
- gps antenna you can install practically anywhere, just find the place where antenna can see himmel. Antenna can see satellites through glas, painted plastic, rubber, but not metal.