Today I will begin installing the z2 in 08 Corolla. I have already done the 2 wire by pass, and have the cd burn, once install will run the cd. got the harness, and everything. but while reading the intruction on install, it appears that i just need to use the power connector for the most part, other 2 connector which consist of video out/ audio out i wont be using i believe, cuz i have no amp, or no rear view monitor, no camera no thing, just plain head unit install... am i right on it?

1. now my question is, where would i find the CAR SPEED SIGNAL INPUT.

and does it have to be hook up.

2. rear gear signal, the same thing.

 

are those things really important, if i were to get professionally install, the installer will take care of those? how many of you had those things.

 

or should i just plain install it with bluetooth, speaker wires, ground the ebrake, and that is it?

 

how you folks are talking the gps antenna to the roof of the vehicle?

 

I know i am asking newbies question, but this would be first install, and before i begin, I like to see if am doing it right,? thanks