I am in the UK and new to the DA100, I was looking for a head unit to properly integrate my Iphone as a source and handle Phone Calls and ended up buying the DA100.
For reference I am running:
Iphone 4S on IOS 6.1.2
SPH DA-100 - Unsure of firmware (can anyone tell me where to find this ?) but purchased new, late December 2012. If i access the camera button from the home screen - the warning has  square brackets (this seems to be some sort of indicator from what i can tell.
I am using both RCA pre-outs feeding one four channel amplifier.
App Radio on the Iphone 4 S is version 2.0.1
I have a couple of issues:
1) I purchased the Pioneer NavGate Drive app, for GPS. This was part of my purchasing decision really, i need an alternative to the TomTom as my wife seems to have claimed that in her car . I downloaded NavGate a couple of days ago and confirmed that this worked as expected on the Iphone itself (launches, can create routes etc). I then went ahead and purchased the UK postcode add on, and the UK Speed Camera database add on - bringing total spend to about £100. When i connected the Iphone to the DA100 and selected advanced app mode, i can see the apps i have including NavGate, tapping NavGate on the DA100 launches the app on the Iphone 4S and this gets as far as the splash screen (the red loading line at the bottom of the splash screen gets around a third of the way along) then this freezes - the DA100 screen goes black and thats as far as it gets. I have subsequently downloaded "Nav4Free" and this works as expected with no problems. Can anyone suggest a fix for Pioneers NavGate app ?, if I am unable to run this im going to have to try and get a refund via Apple and just use Nav4Free.
2) The DA100 has two Pre-Outs. The rear is marked "rear/sub" and according to the literature should allow me to select the channel as either a full range signal - or as a sub only channel. Looking in the settings menu on the DA100 there is a setting marked "Pre Out Rear: Full", there is also a "Subwoofer" setting. With Subwoofer turned ON i get sub bass only from the rear speakers and full range from the fronts. If I turn the Subwoofer OFF i get nothing from the rears at all (if i use the fader, and move it to the back I get silence). The PreOut selection in the settings menu appears greyed out - so all i can change is Subwoofer ON/OFF. Can anyone tell me how to switch the output of the rear PreOut from Subwoofer to Full Range please ?.
3) I do not need the internal amplifier within the DA100 to run as i am using external amplification - is there a way to turn the internal amplifier OFF - other head units I have owned have allowed this to improve signal and reduce heat build up.
4) Pioneer Support - I am finding it difficult to know where to go for Pioneer support for this head unit, there is very little information in the FAQ section on Pioneers website and the instruction manual doesnt cover a lot of the situations i am experiencing, hence ending up here. I have sent a request to Pioneer (turnaround is marked as three days) but havent heard back yet. Is there an area of the Pioneer Support site which im missing ? (please provide a URL if one exists).
Thanks in advance for any replies - much appreciated !.