2002 Honda Accord Ex v6 4-door
I have a 3/4 Channel Amp, One Speaker Subwoofer, and aftermarket radio. I Install a new rear speaker and had it's own speaker line connected to Amp. I then cut rear factory speaker wire and use it as Front speaker wire. This is how I wired but no sound from both rear and front, only subwoofer had sound. Am I doing something wrong. Please my drawing diagram. I'm only drawing speaker wires, the rest of the wire i'm not drawing like remote wire, power wire, ground, etc. since i onl want to concentrate on speaker wire. For the aftermarket radio speaker wire harness, i do not use it. Thanks in advance.

 

your plan to re-use factory wiring to feed the front speakers is a good one.

your problem may be that your amp requires the front inputs be used to use the front outputs (common with some less expensive amps). look on your amp for a switch for 2CH/4CH input mode or run another set of RCA's from the head unit to the front input.