Ok, So as some of you know, I recently got an N3 installed in my 08 Scion tC. The place that installed it put the brain up under the carpet on the passenger side. My cousin says this is wrong, and that it HAS to be under the seat. Something about it would be harder to steal if it's under that seat.

Does it really make that big of a difference? And if so, would I come across as an asshole if when I go back to get my Ipod/Sirius installed I asked them to move it? (or is that fact that they did it this way in the first place a sign I should find a new installer?)

Also, does ventilation play a role in deciding where to put the brain?

No, it just needs to be flat with the arrows facing the correct way

Well It's on a bit of an angle since its up where the feet go...do you think that would affect the functionality?

I am going my memory, but I think it has to be level with in 5-10 degrees.

Anyone have a manual handy?

I was off by a bit. No more than 30 degrees.

Oh crap, that is the head unit.

I'll keep looking for the brain.

Thanks a lot for the replies,

Does anyone know off hand what kind of performance issues I would see. Sometimes it does seem like it has me as being 10-30 feet off of where I actually am, but having been in the military, I'm used to GPS not being 100% accurate.

I just want to know if I have an actual basis for asking them to move it, or if I'm just over-thinking this.

Ok, now I have the right part.

If it is sitting at an angle > 30 degrees then bring it back and insist they relocate it.

The units I use are very accurate. Check to see if yours is calibrated yet and the VSS wire is connected. I am impressed with the accuracy of my D2 and my Dad's N1. However the ones I install are never calibrated when they leave, so they are sometimes off a bit.

Move it someplace else. I had mine there and the passenger(s) would step on the cords and bend the connections. I had mine moved under the cup holders in the center console. I have a 02 chevy tahoe.

I would definitely ask them to move it. Gyros are very sensitive...Surprised it even has 30 degrees of play

Ok, I'm definitely going to ask them to move it. My last question is, is there a way to know it's hooked up the VSS just from the unit itself in a settings menu or something, or do you have to visually verify the wire? I don't even know how to remove the head unit, let alone start tracking down wires. As I've said before, I'm technically inclined with computers and home stereo and such, but when it comes to car stuff, I'm completely new (I've forgotten what a shitty feeling that is).

Yes, somewhere in the navi menu is an icon called connection status. Go to that screen and if you are moving, it will give you a reading for speed pulse if its hooked up

Ok, I know the menu you mean, I can check it out tomorrow. I checked it stationary a little earlier and it has something about unit position and that says "OK".

So assuming that the VSS is hooked up, and the unit says the position is ok, is there really any reason I should make a big deal of this? I have a tendency to get obsessive about things, and want them to be perfect...

Yeah, I'm a freak.

For those of you waiting with bated breath for an update (you know you all hang on my every word) yes, my VSS is connected (when I drive in the Hardware info screen, the speed pulse thing beeps).

So I guess all is well in the world.

those installers are lazy...make them move it