i am a noob and for my first mod i am installing a pioneer avic x940bt navigation unit in my 2013 tacoma access cab sr5 4x4 v6. i have a few questions a long the way as this is my first time doing this. i believe i have ordered everything to make this as easy as possible. i have the pioneer avic x940bt harness and metra 87-up toyota harness completely soldered up except the "reverse gear signal input" and "car speed signal" wires. im not sure what to do with them. what size are the speakers in the front doors and rear doors?
I ordered this kit to override the parking brake
I already have axxess aswc-1 kit for the steering wheel control and also ordered the turbowire harness for easier installation. i am not sure on installation of either of these in conjunction with my head unit