A mixed bag from me in a Gen 3 Coupe...
1. I cant get a GPS reception at all. It says the receiver is connected, but I only get 3 satellite dots, and no signal lock. Hence Navigation doesnt work = useless.
**NOTE** In the iGo 8 Nav app, you can go to settings, GPS and adjust the port and baud rate (which ive done to try every combination) - no need to remove the microSD card and edit the sys.txt file on a computer..
2. My internal microphone doesnt work - at all. Phone calls = useless.
3. All my speakers hiss badly if I dont have music playing its unbearable - e.g. just with the unit sat at the Bluetooth / Nav screen.
I had to swap the out of phase wires around.
My factory menu's were 2222222 (to change logo) and 8888888 (for handbrake / other settings)
I didnt need to trim the dash at all.
Bluetooth connects fine, all the time, Android and iPhone.
Im still waiting for help on how to fix the GPS / Microphone / Hissing issues - a replacement is my guess...
I like the unit, music sound is great, I like the iGo. Perfect if it all worked...