I bought an aftermarket tach i would like to mount on the dash, it has 4 wires coming out the back. I hooked it up and noticed the wires were to short to hook it up and mount it on the dash, so i cut the wires and put some more wire in there so now i hafve plenty of room, i just need to know where to run the wires. Above the middle air vents i thought looked good. ANy pics would help, thanks.