Faulty Channel Switch?

[Gazbirt]

I have a Rockford Fosgate R600x5 amp. The two channels for the front speakers both work, and if I hook the rear speakers up to those two channels they play music. When it's all hooked up like it should be the rear two will play sometimes if I mess with the 2/4/5 channel switch. Does anyone have any ideas on what could be wrong with it?

 

[jsmithepa]

The 2/4/5 channel switch may need cleaning. Spray some contact cleaner in the there, move it back and forth and hope for the best.

 

[americanaudiophile]

If the switch is sealed you may not be able to get contact cleaner inside it. Sometimes just moving the switch 30-40 times will clean it. Do that with the amp off.