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I was curious if the Nav software thats built into this unit updateable via download or some sort of flash update? Just incase they add new roads to my area and expand, I want to know if I will be able to update my maps.

For the mic, does it have to be visible for it to work its best? I kinda want both hidden... i dont trust these audio install shops when it comes to locating a good spot to mount things... i want to be able tell them exactly where to mount it

Where's a good place to mount these in the car? Does it really matter? I am in a g35 coupe. And would like them mounted so they work at their best.

Im a little concerned about the crossover frequencies you have indicated though. If your saying the amp has highpass cutoff at 5hz to 50hz for gods sake dont set your tweeters to any of these frequencies or they will be toast. If you were trying to say 50hz to 5khz then your good. I would not set highpass frequencies to any lower then 2.5khz for most good tweeters though. Certainly double check your specs though. Thanks for pointing that out. I read the manual and noticed this: 3) "Freq. Range" Control: When thrown to the right, this switch multiplies the cutoff frequency by the rotar

I see, was a little confused for a bit. So with HiFiSi's method I will be able to control the HP and LP cutoff points for my midrange speaker from the F90?

I'm setting the LP xover point on my amp for the midrange speaker and also on the AVIC headunit as well? Why do I need to set it in both places? If the amp is handling the xover cutoff points for everything, don't i just completely shut of the AVIC's xover and let my amp handle everything? Sorta confused.

Wow that is a pretty good price! Are they reliable though? I am very nervous about ordering stuff online. Have many on here ordered and can confirm them to be a respectable dealer? also how long will that code last? Thanks again!

Does anyone know a reliable authorized dealer where I can order the F90BT from for a good price?

The JL 450/5 does have xovers for the front and rear channels, here are the specs.. -Channel 1 & 2 Crossover : Fully-Variable (50~5Hz), selectable slope (12dB or 24dB/octave) LP, BP or HP Channel 3 & 4 Crossover : Fully-Variable (50~5Hz), selectable slope (12dB or 24dB/octave) HP So will this work with my components bi-amped with the Pioneer F90BT? I am not sure what to set the crossovers to on my jl 450/4... Im guessing i wire the tweeters to channels 3/4 since the xover is HP only and my mids to channel 3/4 set to BP? Not sure what about the 12dB/24dB, what do i set those

is it fully compatible with the new iPhone 3G? Contacts, bluetooth, videos and ipod mode? charge while plugged, etc?

Will a regular 2way headunit work with my setup? I am interested in purchasing the new F series Pioneer F-90BT indash. But I'm not sure it will work with how my components are hooked up as of currently. Well here's my issue... I have my components up front bi amped... which means i am completely bypassing the passive xovers that came with em and wiring them directly to my 4 channel amp (jl 450/4). I am using the 3way active xover built into my alpine cda-9833 headunit. This way I have much more control tuning my speakers. I been wanting to get a new headunit for awhile now but have put