I bought a nav system from an 03 (or 02) 4.6 and the seller says it was an MK4. I got a great deal so i'm not upset with the seller. But how do i know for sure what it is? On side of blue/purple plug it says MK3 so i'm assuming its mk3.

The next question is, what is the difference between mk3 and mk4? Big difference?

I don't have it installed yet - so as soon as i can i'm going to get it plugged in and tested out in the car. hopefully by end of next week.

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2005 LeMans Blue e53 4.8is
MODs
///LeMans Blue RBs///Intravee II///Sirius///ACS Spoiler///AiB v3///HID Fogs///LED Tails///
///215 20" Ferric Gray///MTEC Pedals///DVD Headrests///SMG M Wheel///AFE CAI Stage 2