Clarion TTX001 - Manual (Page 4)

WIRING PRECAUTIONS
Read all wiring precautions. If you are not sure of the connections, contact
your authorized Clarion dealer.
1. Disconnect the negative (-) lead of the battery before making any power
connections.
2. When creating passage holes for the power wires, use grommets to
eliminate any sharp edges created during drilling. This will protect the wire
from being nicked and causing a short circuit.
3. When connecting the ground lead, fasten the ground lead (black) securely
to a clean metal plate on the vehicle.
4
Figure 2- Wiring