Hello,
I installed an aftermarket radio in a 99 dodge ram 1500,I wired the harness like it said to do,When i pluged the new cd player in it worked but it had no sound,I plugged the factory back in and it worked fine,The truck has no infinity sound system...Is it possible it could still have a factory amp?Where would it be located if it did?...Do i need to just run a remote wire to the factory amp?..Thank's for any info!