I have no sound coming from my new speakers I have just installed. What could be the problem?
Firstly you need to check the wiring from your source/amplifier to your speakers to ensure that no wires are going to ground/earth by touching any part of the vehicle as this could put the source/amplifier into protection and/or terminate signal output to your speakers. Also check fuses etc as grounding the system may blow fuses.
In some cases you may cause permanent damage to the source unit by grounding the speakers ( out put IC failure) so careful attention to secure and insulate wiring is very important.