So, if I were to buy a Lexus Nav radio and the double DIN face, I could plug-and-play that system into the current amp, etc? Assuming of course that I add the GPS antenna and speed sensors? I saw someone in the UK selling this set-up but to keep things local, I should be able to source the bits I assume? Might be worth considering versus the Panasonic - at least until I see the price difference!
Cheers