I am looking for a double din Nav unit for my 2004 F-150.

I am having a tough time finding a unit that fits everything I am looking for. So far the closest one I think is the Clarion-NX509, but I am not 100% sold on it yet. A few others have looked like they would be good units as well, Eclipse AVN726E and the Kenwood DNX7120.

It obviously needs to have good navigation. I have a TomTom 920T and the nav must be at least as good as that. I would really like to have maps that are easily up-datable and something that will allow me to easily add POIs. My worry with the Clarion unit is that it only has 2GB of memory. My TomTom has 4 GB and is a bit full. Also start up time is a concern. My drive to work is very short and I don't want it to take more than maybe a minute for the unit to be up and ready to use. I don't need the navigation to get to work I just want to listen to the radio, cd, or ipod for these trips. The voice directions should be clear and audible. I have seen a few units that reviewers said were too quiet.

In reality the areas I most likely will be cover the great lakes region. Poor Alaska or Wyoming support (etc) is not a huge deal. I am most concerned with Illinois, Indiana, Michigan, Ohio, & PA. Something with good coverage east of the Mississippi is probably all I will really need. I don't want to limit myself though too severely if I am spending this much money. I have seen some units that will work with an iPhone to accept updates for POIs and navigate you to them. This would be a good compromise I think.

I require there to be at least one Axillary input. I prefer it to be in the rear as I already have jacks mounted in the truck and would be hooking them into the receiver. I also will be adding a rear-view camera in the near future. Bluetooth is also required. I don't mind buying a module to support this, however the cost of the receiver must also be proportionally less to make up for this glaring lack of features. If it can be easily (And without too much added cost) include Satellite radio (Sirius) then the aux-in becomes less of a priority. In that case putting the unit aux-input in the front would be acceptable and ideal. Especially if it supports bluetooth for my phone.

Loosely based on priority, here is my list of required features:

• Quality navigation with easily up-datable maps and POIs.
• Aux-In put or Sirius connection /w BT
• Rear-view input
• Bluetooth
• I am ok purchasing modules to add Sirius and BT, but I do not wish to pay $1000 for a unit that lacks these features. Especially the bluetooth as this in my opinion should be a no brainer standard feature today.

I think that covers everything, hopefully you can help me. I realize that my requirements are pretty stringent but I would prefer to cover all of my bases and do this properly the first time and have all of the features I am looking for without going way over budget or having to go back and buy more bits to finish it off.

Hello Ben,

Thanks for your e-mail, and for shopping the Crutchfield web site.

Thanks for the detailed, and thorough list of needs and priorities, it is of great help for me to give you a recommendation. Based on your priorities, current navigation piece, and update concerns, and vehicle, I recommend the Kenwood DNX6140. This unit has Garmin navigation, which is at least as good, or better than the TomTom portable units. This unit has an SD card slot for updates, and changes, Bluetooth by Parrot, and capability for satellite radio. None of the units available today have satellite radio built in. I hope this helps in some way.

Hold the disk eject button for 5 seconds, maybe longer and the screen pops down an additional inch or so to reveal a hidden SD slot.