I have a 2003 Infiniti G35 Sedan. I've looked at the stickied thread and found that I can retain navi function with a JDM kit. Honestly, though, I'm not sure if I wanna spend the money hooking my car up now because it has nearly 190,000 miles. I'd much rather wait until my next Infiniti.

With that said, though, I think my HU is going bad (I previously thought it was the amp). Sometimes the sound cuts in and out when I am turning. Some speakers work sometimes while others do not. They seem to switch. Every now and then, they'll all work (or maybe three). The Bose subwoofer doesn't seem to work well anymore. Not much bass and when there is, it seems minimal. When I hit the SIDE of the radio, the sound actually changes from where it is coming from. It isn't always successful. Can anyone confirm that this is the HU and not the amplifier (I don't have the tool to check the amp voltage or whatever).

Anyways, since I want to retain navi function but not spend $300-400 on a dash kit, I thought to just get a single din but Crutchfield says I'll have to get a pocket for that too? Any ideas guys? I'd appreciate the help.

 

It's covered in the FAQ - a little further down, the metra works with modification.