i have a 05 dodge caravan putting in an aftermarket radio, when i connect everything together i cant get any sound from the speakers, Ive tried everything i can think of reversing the wires changing the order etc, still no sound. Im using a scosche cro2b wire harness. Everything works fine on the aftermarket radio but no sound coming from the speakers, however i have noticed that were two pairs of speaker wires are there are no corresponding ones on the factory side.
When i reconnect the factory radio back the speakers work fine .
The after market radio is a pioneer deh-4400hd, Ive tested in another car and it worked fine
any help or advice would be appreciated

 

make sure if the harness works for the yr of vehicle due to sometimes being changes done.