Just got done installing my new Navigation system.
I've had the head-unit for a while, it is a Kenwood KVT-815. They no longer make them, so I hunted down a refurbished one for approximately $600. This sure was hard to find... The reason why I wanted this particular model so bad is that IT MATCHES SO DAMN WELL! The green lighting (which, you can change to red or blue) and the SILVER FINISH is a perfect match to the console! Look almost factory!
I also have the iPod interface, which isn't too good. Luckily with my iPhone I can set it so i can control all of my music selection within the iPhone and just have it play through the headunit. A definite plus! $50 well spent!
My navigation system is the Kenwood KNA-G510, which is basically a Garmin GPS manufactured to use the Kenwood Video and Touchscreen. I bought it off of ebay for $250, I think it retails for around $600 or something.
If you remember (or check my gallery!) I used to have the Harman Kardon Drive+Play, an old pioneer headunit, and a garmin nuvi 350. I loved my Nuvi to bits, but I acidentally broke it. I also loved my drive+play, I actually had it integrated into the console thanks to JR Industries who did a fantastic job.
But.. I just felt the need to compress everything, the big suction cup on my windshield, and controller **** on my console kind of told thieves "I have money in my car, come and take some stuff!!!!)
Therefore, I wanted my iPod (or iPhone), navigation, and radio all in one. This is why I decided to do this, my iphone cable is tucked neatly away so no one can see it. Everything almost looks stock, so therefore I don't really worry much about anything being stolen.
Here are some pictures, just thought I'd share. I am so happy with this setup I cannot contain myself

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