Guessing a flip-out screen.Same stuff as any other install. Fit kit, wiring harness, antenna adapter.
2003 Vibe GT Lava"He inched his way up the corridor as if he would rather be yarding his way down it.""For a moment, nothing happened. Then, after a second or so, nothing continued to happen." - Douglas Adams...we all miss you
Well since it's an eclipse it has to be installed by an eclipse dealer otherwise everything it void. So I'd let them do it. (considering their not even allowed to let you take it out of the store with out having them install it otherwise they can loose their eclipse licensing)
Ive bought 2 Eclipse Head Units and installed both of them myself. Never had any problems with warranty.As far as the GPS one, you may want to check if its got what they call "Dead Reckoning," if it does you have to let them install it because they have to tie into your Speedometer and Backup lights.
God, grant me the serenity to accept the things I can not change,the courage to change the things I can, and the wisdom to know the difference.
If you can install it yourself, depending on how handy you are with wiring, you can do the whole thing. All you need is the reverse light wire and the VSS wire, nothing too complex.
2003 Vibe GT Lava"He inched his way up the corridor as if he would rather be yarding his way down it.""For a moment, nothing happened. Then, after a second or so, nothing continued to happen." - Douglas Adams...we all miss you