I have a 2012 Mazda 5 and getting a JVC-KW-M845BW along with the PAC RP4-MZ11, Metra 40-HD10 Antenna Adapter, and Metra 95-7521B Dash Kit to replace the factory unit (which I have already replaced once on my own). JVC has a couple of wires outside of the harness. Given that I am not very familiar with installing car audio systems, any tips I can get would be a great help:
1. JVC Parking brake switch/indicator wire
2. JVC Reverse sensor wire
3. JVC GPS unit - how to route the cable from behind unit to outside on the dash?
4. JVC 2x USB - how to route the cable from behind unit to outside on the dash?
5. JVC Bluetooth mic - how to route the cable from behind unit to outside on the dash?
I have been told by Crutchfield that 1 & 2 are located somewhere near the cabin filter area, but I am not sure where exactly. For 3, 4, and 5 I am thinking of drilling holes/slots on the Metra dash kit to get them out. Any alternate suggestions since I see no way to get the cables from behind the unit to outside? JVC wiring diagram attached. Thanks in advance.
1. JVC Parking brake switch/indicator wire
2. JVC Reverse sensor wire
3. JVC GPS unit - how to route the cable from behind unit to outside on the dash?
4. JVC 2x USB - how to route the cable from behind unit to outside on the dash?
5. JVC Bluetooth mic - how to route the cable from behind unit to outside on the dash?
I have been told by Crutchfield that 1 & 2 are located somewhere near the cabin filter area, but I am not sure where exactly. For 3, 4, and 5 I am thinking of drilling holes/slots on the Metra dash kit to get them out. Any alternate suggestions since I see no way to get the cables from behind the unit to outside? JVC wiring diagram attached. Thanks in advance.